Chapin G362D/G364D Hose-End Sprayer: Instructions and Warnings

Important Safety Warnings

WARNING: Never spray flammable, caustic, acidic, chlorine, bleach, or other corrosive solutions, or heat, pressure, or gas-producing chemicals. Always read and follow chemical manufacturer’s instructions before use with this sprayer, as some chemicals may be hazardous when used with this sprayer.

Always wear eye protection that complies with current ANSI Standard Z87.1.

Do not spray during windy conditions or allow spray to reach people or animals.

Clean sprayer and bottle thoroughly after each use to prevent contamination between different chemicals.

The handle is equipped with an anti-siphon device to prevent chemicals from being drawn back into the hose. Do not substitute the handle.

Do not set the dial between numbers. Any such setting sprays more than 10 tablespoons/teaspoons per gallon.

Before using, read and understand chemical manufacturer’s instructions and warnings, as well as those in the sprayer instruction pamphlet.

Do not spray water into an electrical outlet. Severe electrical shock could result in death.

FAILURE TO HEED ALL SAFETY WARNINGS AND INSTRUCTIONS COULD RESULT IN SERIOUS BODILY INJURY OR PROPERTY DAMAGE.

Product Overview

Congratulations on your purchase of the Chapin G362D/G364D, a versatile lawn and garden sprayer. This sprayer combines ease of use with precise operation. It is designed to spray commercially available liquid insecticides, fertilizers, or weed killers without pre-mixing. Wettable powders and thicker liquids may require prediluting.

The sprayer automatically blends liquid concentrate with water as you spray. Simply set the metering dial to the manufacturer’s recommended dilution rate for your chemical. Unused concentrate can be returned to its original container, preventing waste.

Key Components:

1. Pistol grip handle: Features a lever valve for instant on/off operation. Ensure it is fully opened when using the sprayer and the hold-open clip is off before connecting to the water supply.
2. Mixing head: Includes a metering dial with settings for 1 through 7 and 10 tablespoons or teaspoons per gallon of water, and a Teaspoon Orifice (converter) stored in the top.
3. Bottle: An unbreakable, graduated pint polyethylene bottle with a siphon tube and strainer.
4. Adjustable deflector: Can be rotated to direct spray up or down, or removed for a solid stream that reaches up to 30 feet for spraying trees.

Parts List

Replacement parts are available separately. For replacement parts, please call 1-800-950-4458.

Note: Your sprayer may be packaged with its spray deflector (1) inside the bottle (6) for shipping. Attach the deflector by pressing it onto the brass head. Press firmly to snap in place. Rotate to adjust the spray pattern.

Setting and Using the Sprayer

Turn the metering dial until the desired setting number is next to the setting arrows on the side of the mixing head. These arrows are located above and below the silver side body plug.

Teaspoon Converting Orifice Storage:

If your chemical calls for teaspoons per gallon of water, unscrew the teaspoon converting orifice from its storage hole on top of the mixing head. Insert it into the top of the siphon tube and slip the tube/orifice assembly back into the sleeve under the mixing head (refer to drawing). The metering dial will now read in teaspoons per gallon of water. When not in use, always store the orifice in the storage hole on top of the mixing head.

Fill the sprayer bottle with the liquid concentrate, insert the siphon tube into the base of the mixing head, and thread the bottle into the head. Attach a water hose to the handle and turn on the water. When you squeeze the handle, you will automatically be spraying the proper number of teaspoons or tablespoons per gallon of water.

After spraying, do not return any unused liquid concentrate to its original container.

To spray water only, simply remove the chemical bottle from the mixing head.

Setting Tablespoons/Teaspoons Per Gallon

Prediluting Wettable Powders

General Formula: For wettable powders, set dial to 10 tablespoons and dilute powder for each gallon of finished spray in 5 ounces of water (which is 10 tablespoons).

Directions:

1. Determine the rate per gallon of water from the product label (e.g., 2 tablespoons/gallon).
2. Place the powder (e.g., 2 tablespoons) in a separate container and add water to the pre-determined 5 fl. oz. mark. Add the powder. Mix well to wet thoroughly and suspend the powder. Multiples of this formula may be mixed.
3. Some powders may not dissolve completely. If using such material, to avoid clumping, transfer the mixture to the spray bottle through a funnel with a 40 mesh screen (like a paint filler).
4. Set the spray dial to 10 tablespoons. The sprayer will siphon the entire 5 fl. oz. of liquid and spray the powder at the correct dosage in 1 gallon of spray.

Note: For certain water-soluble powders where the rate per gallon is too high to mix freely with 5 ounces of water, mix it at 1/2 rate and make 2 applications, allowing the first spray to soak in thoroughly before respraying.

If the viscosity (thickness) of your liquid chemical is significantly greater than that of water, the mix ratio of the sprayer may be affected. Contact the chemical manufacturer for application instructions.

Important Note on Water Pressure

This sprayer is designed to work most accurately at 40 to 60 pounds of water pressure. At lower pressures, the dilution rate of each setting will be lower. At higher pressures, the dilution rate of each setting will be higher. If your water pressure is not within the recommended limits, you should test the amount of chemicals you are spraying at your desired setting.

Testing for Proper Settings

This is especially recommended if the dilution rate of the chemical is critical. For more precise metering, use the teaspoon orifice for teaspoon settings when possible.

Fill the sprayer bottle with the chemical concentrate. Set the dial to the recommended setting and attach the water supply hose. Carefully check the level of the contents of the sprayer bottle. Spray one gallon into a measured container and note the level of contents of the sprayer bottle. The amount of chemical used should be equal to the setting. If more was used, move the dial to a lower setting and test again. If less was used, move the dial to a higher setting and test again.

Cleaning Your Sprayer

It is important to flush out your sprayer after each use to ensure trouble-free siphoning action and reduce any contamination between chemicals.

1. Remove chemical from bottle and fill with clear water.
2. Set the dial to number 10 and spray until the bottle is empty.

If the sprayer has not been cleaned, it may not siphon properly the next time it is used. This means that some dried chemical has clogged one or more of the openings in the mixing head. If rinsing does not clear the openings, soak the mixing head in warm soapy water, rinse, and try spraying again.

If a weed killer has been sprayed, wash the bottle and mixing head with soap and water, then follow the above procedure, using 3 flushings. A second bottle is recommended for use with weed killers.

When using this sprayer, a backflow device (not supplied) should be installed at the hose bib.

Additional Resources

For technical support videos and more information, visit: chapinmfg.com/pages/technical-support-videos