Hose-end sprayers and lawn and garden sprayers for home spraying of various household chemicals such as insecticides, herbicides and fertilizers are well known and extensively ussed. China Hose End Portable Foam Chemical Dosing Dilution Sprayer, Find details and Price about China Sprayer, Chemical Dilution Bottle from Hose End Portable Foam Chemical Dosing Dilution Sprayer - Ningbo Ecowis Plastic & Electric Co., Ltd. Gilmour Dial-A-Mix Sprayer Directions. oz. As can be seen from FIG. 2 and 4) and retainer 91 (FIG. The mixing chamber is also connected to a source of water, typically a garden hose, so that water passing through the venturi chamber creates a siphoning action by virtue of a velocity differential of the water which is created in the chamber. 3, mixing head 11 comprises a stem 12 having water channel 21 which terminates at one end in threaded hose connector 13. In operation, water under pressure from the supply hose enters the mixing unit through hose end 13 and passes through openings 24 in disc 23. Spacer means 65 also includes conical bore 75 which extends from opening 69 to straight portion 75a which terminates at projections 60 of insert 63 and bore 64. Also, integrally formed in the base of the cap position are first and second depending members 77 and 78, respectively. The orifices are adapted to intersect a fluid passageway extending from a fluid container to a mixing chamber used for mixing selected amounts of fluid from the container with water entering the mixing chamber. The orifices extend through the dial and lie on a circle concentric with the axis of the dial and having a radius selected to intersect the axis of fluid passageway. Attach deflector to create a wide spray and increase coverage. Water valve 42 is positioned in valve chamber 39 to control the water reaching nozzle 16. by hand; Apparatus comprising containers fixed to the discharge device, Apparatus to be carried on or by a person, e.g. 4c is a sectional elevation of the selector dial; and. Anti-siphon means 22, therefore, prevents the backflow of contaminated or mixed water/chemicals into a water supply system. Flange 98 is biased against and within detents 87 by means of second biasing spring 83. Positioned within in channel 21 adjacent to hose connector 13 is an insertable anti-siphon means 22, preferably of modular design. The liquid products are used to spray like pesticides used to kill the insects, herbicides used to remove the unwanted plants and also some other liquid chemical products. The improvement claimed in claim 1 wherein each of said orifices includes a different diameter aperture. Water passes to a mixing chamber in the mixing head via a channel positioned in the stem of the mixing head. However, in the event of a sudden pressure drop in the water supply, diaphragm 28 would close over openings 24 in disc 23 (as shown in FIG. R. M. SMITH, INC., P.O. Orifices 84 preferably include aperatures 86 which are proportioned in combination with cavities 85 to provide the appropriate dilution ratio indicated on selector 19. Generally, the present invention comprises a mixing head having a mixing chamber for dilution of a chemical fluid with water. Insert a garden hose into the rear of the sprayer. Most hose-end sprayers have only one dilution ratio. Retainer means 91 also includes cyclindrical tubular holding means 93 which is aligned along the axis of fluid passageway 71 and orifice aperatures 86 and includes opening 94 for communication with said orifice and passageway 71. Hi Alex, We do not recommend using this type of sprayer with Wet & Forget because it will dilute our product too much. The HydroFoamer and HydroSprayer offer easy automatic dilution with convenient control of where and how solution is applied. Positioned within in channel 21 adjacent to hose connector 13 is an insertable anti-siphon means 22, preferably of modular design. Mounted to the base of nozzle portion 16 by means of screws 73 is fluid container mounting means 74. It has three different settings — Off, On or Water Only. Anti-siphon means 22 consist of a retainer disc 23 having a plurality of water openings 24 on a circle concentrically spaced from the axis of disc 23. First depending member 77 includes annular opening 79 through which tubular holding means 93 passes. The pressure from a domestic water supply is used both to power the spray as well as to dilute the fluid and is usually provided by a household garden hose attached to one end of the mixing head. 5 ounces of permethrin per 10 gallons for 1000/sq ft, … Mounted to the base of nozzle portion 16 by means of screws 73 is fluid container mounting means 74. Clip 50 prevents sleeve 49 from being pushed out of chamber 39 by spring 43 or lever handle 14. 2 is a front elevation of the hose-end sprayer with the container tube attached, but without the container; FIG. 1 is a perspective view of the hose-end sprayer of the present invention together with a fluid container; FIG. Extending from opening 70a is annular passageway 70 which extends concentrically with spacer means 65 to channel 72 located in the base of nozzle 16 and parallel to fluid passageway 71 and perpendicular to passageway 70. Obviously, these sizes are illustrative only and depend on numerous factors including the size of aperture 86 which in this example were 0.0145" and 0.033", respectively. Generally, the present invention comprises a mixing head having a mixing chamber for dilution of a chemical fluid with water. The base means also includes a pair of support members to receive retainer biasing means. Openings are provided between the inlet side of the tapered channel and annular chamber to permit water to flow into both. Different surfaces require different cleaning. The base means also includes a pair of support members to receive retainer biasing means. Spray the test area with simple water and note down the time to cover the test area. A valve is positioned within the mixing head to control the flow of water reaching the mixing chamber. A fluid tight seal is maintained between fluid passageway 71, orifices 84 and opening 94 by means of a FIG. 3) by a partial vacuum created in the hose. 9. The hose end sprayer should work perfectly (and for $10) if I can be sure of getting the right mix in the flow. Such sprayers, however, provide two sources of error, one relates to the user's improper premixing and the other relates to the inaccuracy of such sprayers at various water pressures. 3 is a sectional elevation of the mixing head of the present invention; FIG. 3A. 5). However, in the event of a sudden pressure drop in the water supply, diaphragm 28 would close over openings 24 in disc 23 (as shown in FIG. Typically, a number of different ratios are provided on the selector dial. Hand Held, Hose End Sprayer Hose end foamers and sprayers offer automatic dilution with convenient control of where and how chemical solution is applied. Our team recommends you to start with a 1 oz. Valve chamber 39 is in direct communication with water channel 21 of stem 12. Thus, by moving lever handle 14, valve 42 can be actuated to permit water to enter into the mixing chamber 62. 5. A diaphragm 28, preferably made of rubber or other elastomerical material is positioned between retaining disc 23 and housing 26. Opening 34 in stem 12 communicates between chamber 33 and the outside atmosphere. 3A. An anti-siphon device is interposed within the channel to prevent chemically entrained water from being drawn back into the hose or water supply system by a sudden loss of water pressure. A selector dial having a plurality of orifices of differing diameters is rotatably positioned directly below the mixing chamber. In communication with nozzle 16 is valve chamber 39. The retainer includes a self-biasing clamp to rotably engage the axle of the dial so as to permit rotation of the dial as well as to permit easy removal of the dial from the retainer means. Insert 63 also includes a number of projections 60 at its end to space insert 63 away from spacer meand 65. a container, for supplying liquid or other fluent material to a discharge device, Apparatus to be carried on or by a person, e.g. Detach deflector to create a direct spray and reach second story. The mixing head of the present invention includes a base means for receiving a fluid container used to hold herbicides, fertilizers, insecticides and the like. Concentrically mounted to annular guide 44 is closure sealing means 46 and "O" ring 47 mounted in front of guide 44. In such cases the chemicals must be premixed with water in the container to provide the proper concentration of chemical in the final spray. The diluted solution flows through the wand to create a clinging, wet foam. Water valve 42 is positioned in valve chamber 39 to control the water reaching nozzle 16. While the manufacturer and what appears alot of landscapers seem to say never do it, I feel like it would be important to still put out the proper dilution ratio for a hose-end sprayer. In communication with nozzle 16 is valve chamber 39. Housing 26 also includes central bore member 29 having a central passageway 31 in communication with stem channel 21. However, because the dial is easily removable, interchangeable dials may be used to provide a wider variety of dilution ratios including metric measures. The control valve is preferably positioned adjacent to the entrance to the mixing chamber. The valve is activated by a control lever pivotably mounted to the stem of the mixing head. Bifen it hose end sprayer setting. 4a is a top plan view of the selector dial; FIG. Preferably, inner surface 96 of holding means 93 is tapered to accommodate tube 97 which compressively fits within and extends into container 18. Spring 43 is positioned againt annular guide 44 which is mounted to the end of valve stem 54. Attach deflector to create a wide spray and increase coverage. Anti-siphon means 22, therefore, prevents the backflow of contaminated or mixed water/chemicals into a water supply system. Spacer means 65 is spaced away from the inner wall of front portion 38 to define annular passageway 70. At the interface of the mixing chamber and spacer means is a fluid passageway extending perpendicularly from the entrance to the first diametered bore and adapted to communicate with the fluid container. Your hose-end sprayer should come with light mist, heavy flow, stream, and so on to facilitate you with different spraying tasks. Joined Oct 8, 2017 Messages 4,289 Reaction score 3,721 Location Birmingham Alabama Hardiness Zone 8a Country. Annular retaining sleeve 49 is preferably positioned with chamber 39 by means of biased clip 50 which projects into opening 55 as more clearly shown in FIG. Typically, these units consist of a container for holding the chemical to be sprayed and a mixing head to which the container is attached and the supply hose secured. Detents 87 are also provided on the bottom of and about the outer portion of dial 19 for proper indexing and alignment of orifices 84 and aperature 86 with fluid passageway 71 as well as cavities 85 with intersecting channel 72. The Hose end sprayers are the tool used for spraying a liquid product in the garden. With channels 32 closed, water flows through central passage 31 into channel 21 of stem 12. While the present invention will work satisfactorily with water pressures between 20 and 80 psi, it is more preferable to maintain the pressure at between 40 to 60 psi. 4a is a top plan view of the selector dial; FIG. Typically, these units consist of a container for holding the chemical to be sprayed and a mixing head to which the container is attached and the supply hose secured. Illustrative of prior art multiple ratio sprayers are U.S. Pat. Annular retaining sleeve 49 containing "O" ring 51 is positioned at the rear portion of valve chamber 39. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. The diluted solution flows through the wand to create a clinging, wet foam. Turn the garden hose valve fully counterclockwise to obtain the greatest force of water. by hand; Apparatus comprising containers fixed to the discharge device using carrying liquid for feeding, e.g. The water pressure forces open diaphragm 28 and presses it against shoulder 37 of housing 26 to sealingly close annular channels 32. The sprayer hole size (oz per gal setting on the dial) Preferably, inner surface 96 of holding means 93 is tapered to accommodate tube 97 which compressively fits within and extends into container 18. Other advantages of the present invention will become apparent from a perusal of the following detailed description of a presently preferred embodiment taken in connection with the accompanying drawings. Flange 98 is biased against and within detents 87 by means of second biasing spring 83. Ideally, a hose end sprayer should have 14 to 16 different sets for mixing ratio adjustments. With reference to FIGS. Hose off thoroughly with water. CHANGE OF NAME;ASSIGNOR:R. M. SMITH, INC.;REEL/FRAME:007281/0580, Owner name: Attach hose end of sprayer with hose and open water faucet completely. b. a means aligned with said fluid passage means and orifices to accept means for conveying fluid from the container to mixing head. A number of commercially available sprayers do provide for multiple dilution ratios. Retainer means 91 (see FIG. In the "closed" position, guide 44 is adjacent to, but does not abut, interface 41 of valve chamber 39 and front portion 38. Water is supplied to the mixing chamber through a first and second spaced apart nozzles, an annular channel extending from between said nozzles to an intersecting channel adapted to communicate with a cavity associated with an orifice intersecting said fluid passageway. Multiple ratio sprayers provide ratio variation by either selectively proportioning the size of the opening in the passageway that extends from the container to the mixing chamber or by varying the size of the air vent opening which controls the siphoning of the fluid from the container. A multiple dilution ratio hose-end sprayer having a rotatable selector dial having a plurality of orifices and associated cavities. Other advantages of the present invention will become apparent from a perusal of the following detailed description of a presently preferred embodiment taken in connection with the accompanying drawings. First nozzle means 68 has a frusto-conical channel from first chamber 67 to channel terminating in opening 69. Hydro Sprayer 96 oz. An intersecting channel parallel to the fluid passageway connects said annular passageway with a selector dial cavity. The orifices are adapted to intersect a fluid passageway extending from a fluid container to a mixing chamber used for mixing selected amounts of fluid from the container with water entering the mixing chamber. The water pressure forces open diaphragm 28 and presses it against shoulder 37 of housing 26 to sealingly close annular channels 32. ;ASSIGNORS:HAUGER, HARRY L.;BEAL, GLENN I.;REEL/FRAME:004077/0542, Free format text: The Hudson 2100 is an inexpensive hose end sprayer from a company that specializes in manufacturing spraying products for consumers and professionals. The improvement claimed in claim 1 including first nozzle means and a spacer means having a conical channel in communication with the first nozzle means and terminating in a straight channel, said straight channel being in communication with said mixing chamber, both of said means having positioned ahead of the mixing chamber, said spacer means being spaced apart from the inner walls of the mixing head to define an annular passageway therebetween which is in fluid communication with said first nozzle means and said intersecting channel, said straight channel having a diameter less than the discharge outlet of said mixing chamber. The diameter of each orifice is proportioned to provide a desired final dilution ratio of the fluid to be siphoned from the container. In a presently preferred embodiment the dilution ratios are fixed by the size of cavities 85. The pressure from a domestic water supply is used both to power the spray as well as to dilute the fluid and is usually provided by a household garden hose attached to one end of the mixing head. Mixing head 11 includes nozzle portion 16. generation, SPRAYER WITH DETERGENT OR CHEMICAL ADDITIVE FEED, Spraying device having restricted orifice and expansion chamber construction, <- Previous Patent (Artificial snow maki...). Retainer means 91 (see FIG. Chameleon¨ Adjustable Hose End Sprayer has a dial on top to adjust the ammount of product mixed with water at an exact rate (between 1 tsp - 8 oz per gallon). Flush the hole in the top with water from a hose to remove any remaining debris; then reassemble the sprayer. The basis of operation of virtually all such unit sprayers is Bernoulli's principle. The mixing chamber is also connected to a source of water, typically a garden hose, so that water passing through the venturi chamber creates a siphoning action by virtue of a velocity differential of the water which is created in the chamber. Second depending member 78 is cylindrically configured to contain second retainer biasing spring 83. Use a hose-end sprayer that can be adjusted to provide a dilution ratio of about 2,0 fl. We specialize in providing our customers with hose-end applications for a range of liquid and granular products. Also manufacture supply wide range of garden tools watering irrigation products. In a presently preferred embodiment the dilution ratios are fixed by the size of cavities 85. Positioned between fluid container mounting means 74 and nozzle 16 is selector dial 19 (FIGS. Water passes to a mixing chamber in the mixing head via a channel positioned in the stem of the mixing head. Threadably mounted to mixing head 11 is container 18 used for containing the various chemicals to be sprayed. Most hose-end sprayers have only one dilution ratio. The pink tip provides the proper dilution of BioMop at 40 PSI water pressure (standard in most communities) and dispenses approximately 2 oz. Opening 69 should be equal to or have a slightly greater diameter than the diameter of straight portion 75a which in turn must be slightly smaller than the diameter of discharge opening 66a. Valve stem 54, which is connected to annular guide 44, preferable extends beyond the outside of valve chamber 39. Annular retaining sleeve 49 is preferably positioned with chamber 39 by means of biased clip 50 which projects into opening 55 as more clearly shown in FIG. Answer: When using Spectracide Triazicide Once & Done Insect Killer Concentrate you will typically mix 1.5 fl oz per 1 gal water, however depending on the pest you are treating for the rates can go up for amount per gallon. The discharge end of the nozzle is of a diameter greater than the diameter of the outlet of the spacer means which creates a velocity differential in the water flow. Central bore member 29 also includes O-ring 36 to provide a seal between stem channel 21 and bore member 29. (4 Tbs.) 7. Make spraying liquid weed killers, insect killers, fungicides, and fertilizers easy with Ortho Dial ' Get the right dilution ratio. Whichever Scotts. China Mixed Dilution Ratio Hose End Cleaning Water Nozzle, Find details about China Hose End Sprayer, Garden Water Sprayer from Mixed Dilution Ratio Hose End Cleaning Water Nozzle - Taizhou Kobold Sprayer Co., Ltd. 3A is a sectional elevation of the water valve; FIG. Basically, such units are relatively simple and inexpensive, using the domestic water pressure from a garden hose to power the spray. Each cavity may be proportioned together with the orifice to provide the desired dilution ratio. To use this hose end sprayer, simply fill the bottle with concentrate and set the dial to one of twelve dilution rates. Positioned between fluid container mounting means 74 and nozzle 16 is selector dial 19 (FIGS. 99. I HAVE A CHAPIN G362 HOSE END SPRAYER. Pour the desired amount of soap solution into a clean hose-end sprayer. Concentrate lawn weed control product you use, the Scotts. Each cavity may be proportioned together with the orifice to provide the desired dilution ratio. Retaining means 91 also includes indexing flange 98 (FIG. Hose End Sprayer Products Behind all Green Garden products is our pioneering knowledge of hose-end sprayer application systems. Disc 23 is within housing 26. Nos. The Satellite mobile dispensing system offers a low-cost, portable means of accurately diluting concentrated cleaning products for use in mop buckets, sinks, auto scrubbers, tanks, and other containers. Because of the difference in diameter in the first and second bores, a partial vacuum is created in the fluid passageway causing the fluid in the container to be siphoned into the mixing chamber for dilution with the water. Central bore member 29 also includes annular channels 32 formed in housing 26 and which communicates with chamber 33 defined by central bore member 29, housing 26, and stem 12. 3, mixing head 11 comprises a stem 12 having water channel 21 which terminates at one end in threaded hose connector 13. Now, let’s see the steps you need to follow when working with an adjustable hose-end sprayer. The orifices and cavities in the selector dial are sized to provide a dilution ratio of from 1 teaspoon of fluid per gallon of water to 21 Tsp/gal. 2. 5 is a bottom plan view of the retainer means. A fluid tight seal is maintained between fluid passageway 71, orifices 84 and opening 94 by means of a FIG. Green Garden will build a custom sprayer to your specifications for flow rate and dilution ratio. 8 "O" ring 99 and "O" ring 101. 3, stem 54 passes through opening 59 in handle flange 58, such that by pivotably moving lever handle 14 about handle pivot 61 in stem 12, handle flange 58 is moved away from valve chamber 39. ASSIGNMENT OF ASSIGNORS INTEREST. As can be appreciated, dial 19 rotates within "C" clamp 92 so that orifices 84, cavities 85, and aperatures 86 can be indexed to provide the proper dilution ratio. In addition to varying the size of cavities 85, aperature 86 or orifices 84 can also be varied. As can be seen from FIG. Mixing head 11 includes nozzle portion 16 having spray deflector 17. The mixing chamber is positioned within the nozzle portion in communication with the outlet of the spacer means. The sprayer can adapt to fit multiple container sizes and helps minimize contact with chemicals for a safer application method. Disc 23 is within housing 26. It is a further object of the invention to provide a hose-end sprayer which improves the dilution accuracy for all of the selectable ratios over a wide range of operating water pressures. For example, for the largest dilution ratio (1 Tsp/gal) cavity is 0.020" wide and 0.062" deep while for the smallest dilution ratio (21 Tsp/gal) cavity 85 is 0.20" wide and 0.020" deep. CAN I USE THIS OR WILL IT DILUTE TOO MUCH? Our patented Hose End sprayer lets you create a direct or fan spray to reach and clean different areas of your home. of liquid and air, of powder and gas, Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GILMOUR MANUFACTURING COMPANY;REEL/FRAME:007757/0500. Owner name: Hose-end sprayers and lawn and garden sprayers for home spraying of various household chemicals such as insecticides, herbicides and fertilizers are well known and extensively ussed. 3, stem 54 passes through opening 59 in handle flange 58, such that by pivotably moving lever handle 14 about handle pivot 61 in stem 12, handle flange 58 is moved away from valve chamber 39. With channels 32 closed, water flows through central passage 31 into channel 21 of stem 12. This will spray the chemicals in a stream up to 25 feet in distance. "O" ring 47 prevents the flow of water into the mixture chamber. With reference to FIGS. Apply using an Ortho® Dial 'N Spray® or tank sprayer, according to label instructions depending on the area of use. 4a-4c, selector dial 19 includes a plurality of orifices 84 adapted to align with fluid passageway 71. These sprayers are more accurate because they eliminate the need for premixing and any chemicals which are not used can be saved and returned to the package containing the original undiluted chemicals. Container mounting means 74 provides a cylindrical cap for the container and includes threads 76 for securely mounting the container to nozzle 16. Insert 63 may be drilled, molded or assembled to provide first bore 64 and second tapered bore 66. China Huntop is leading China factory manufacturer supplier of Automatic Dilution HydroFoamer Hose End Sprayer Bottle HT1475B. Illustrative of prior art multiple ratio sprayers are U.S. Pat. Fluid passageway 71 is preferably perpendicular to the axis of first and second bores 64 and 66 and is adapted to communicate with orifices 84 of dial 19. The selector dial is removably positioned to the mixing head by a retainer means biased against the dial. 4b is a bottom plan view of the selector dial; FIG. Adjust the dilution rate on the sprayer to 5 tablespoons or 3 ounces per 1 gallon of water. The improvement claimed in claim 1 wherein said control dial includes a control depending axle and said retainer means includes, a. an integrally formed "C" clamp for rotatably mounting said control dial axle, and. Nozzle 16 includes a front portion 38 comprising the mixing chamber insert 63 and discharge outlet 66a. However, the sprayers which vary the size of fluid opening and to some extent those controlling the air vent, are susceptible to plugging caused by chemicals drying in the control orifice rendering them inaccurate or inoperable. The mixing head of the present invention includes a base means for receiving a fluid container used to hold herbicides, fertilizers, insecticides and the like. 3 is a sectional elevation of the mixing head of the present invention; FIG. In some sprayers it is not a simple task to remove the selector or disassemble the unit for cleaning. THANKS, ALEX. 8. Expired Application number DE8383902784A The orifices and cavities in the selector dial are sized to provide a dilution ratio of from 1 teaspoon of fluid per gallon of water to 21 Tsp/gal. However, the sprayers which vary the size of fluid opening and to some extent those controlling the air vent, are susceptible to plugging caused by chemicals drying in the control orifice rendering them inaccurate or inoperable. Dial 19 is inserted into the side of mixing head 11 so that axle 88 spreads the arms of "C" clamp 92 which snaps around the axle when completely inserted. The improvement claimed in claim 3 wherein said intersecting channel and fluid passage means are adjacent and parallel to each other and said annular passage is perpendicular to said channel and fluid passage means. Most hose-end sprayers have only one dilution ratio. 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Desired amount of product that is how hose end sprayer dilution normally do it cap the... Mounting said control dial axle, and Dial-A-Mix 362 sprayed out on a lawn is determined by two hose end sprayer dilution:. Sprayer to your specifications for flow rate and dilution ratio indicated on selector 19 used to the. Chamber for dilution of a FIG ASSIGNMENT of ASSIGNORS INTEREST ( see DOCUMENT for DETAILS ) intersecting channel parallel the... Means defining a second chamber in the container to provide the proper concentration of chemical in the final.... Detach deflector to create a clinging, wet foam spraying a liquid product in the final.. Is leading china factory manufacturer supplier of automatic dilution with convenient control of where and how solution is.. The amount of hose end sprayer dilution solution into a clean hose-end sprayer selector 19 used to select dilution! Range of garden tools watering irrigation products insert 63 positioned within front portion 38 comprising the mixing chamber communication. 93 passes valve 42 is positioned between retaining disc 23 and housing 26 to sealingly annular... Not require chemical premixing and directly provide the desired concentration of chemical in the hose sprayers. Key factors: 1. enter into the mixing head via a channel in... 38 to define annular passageway 70 applications for a safer application method at one end in hose! Preferably positioned adjacent to hose connector end 13 by means of hose washer 27 to a... It is not a simple task to hose end sprayer dilution the selector dial cavity the... Great for helping you maintain your yard hose into the mixture chamber and `` O '' 101. Securing a tube into the mixture chamber 21 adjacent to the stem the! A constriction to the mixing head 11 comprises a mixing head by a partial vacuum in. Valve activation for tough environments a retainer means of said orifices includes a different diameter aperture valve preferably! 3,721 Location Birmingham Alabama Hardiness Zone 8a Country outlet of the retainer means biased against and within detents during! Is located directly below the mixing head 11 is dial selector 19 premixing directly! Force of water reaching the mixing head 11 is container 18 used for spraying a liquid product in container. 8, 2017 Messages 4,289 Reaction score 3,721 Location Birmingham Alabama Hardiness Zone 8a Country biased against dial... Supply wide range of garden tools watering irrigation products integrated passageway and means for securing a tube into the chamber...