Can this be set as a 10 gallon sprayer?

You would need to know the ratio of product to gallons based on the chemical manufacturer's instructions. For example, 1 Tablespoon = 1 gallon. You would put 10 Tablespoons of product in the sprayer, fill the sprayer to the 10 gallon line and mix well before starting to spray. If you have any other questions about this sprayer that we can help with, please give our technical Customer Service Team a call at 800-950-4458 and they will be happy to assist you. Thank you for your question and for your interest in Chapin Sprayers.

what is the highest level of concentration? I would like to mix a 10-to1 ratio of water to bleach.

You might be better off with a sprayer that has a mixing dial. You cannot vary the mix on this sprayer.

So, if I'm using a product that calls for a ratio of 3 oz./gal., how much product do I put in this thing? I am math challenged, obviously :-(

A gallon is 128 ounces. A quart is 32 ounces. There are 4 quarts in a gallon. If you are saying your bottle sprayer is 32 ounces then I would presume you would need to divide the 3 oz by 4 which is 0.75 ounces. If you have a shot glass most shot glasses are Close to 1 ounce. So you would need to do a shot glass and fill it 3/4 of the way up with your product per usage. At least that is how I calculate it and what I would do.

Can this be used with granular fertilizer?

Hi. The Chapin G390: “Lawn Hose End Sprayer for Fertilizer” can be used with liquid or powder products. When using powders, be sure to mix the solution thoroughly before spraying to avoid clogging. If you have any further questions you can also reach our Technical Support team at 1-800-444-3140 option 1. Thank you for your question.

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🌿 Elevate your lawn game with pro-grade precision and effortless control!

PROUDLY AMERICAN MADE - Designed and supported in the USA, ensuring quality and reliable customer service you can trust.
VERSATILE SPRAY OPTIONS - Removable fan nozzle lets you switch between broad coverage and targeted streams for every lawn need.
SPRAY SMARTER NOT HARDER - Effortlessly treat up to 20 gallons per tank fill—maximize lawn care with minimal refills.
SEAMLESS HOSE COMPATIBILITY - Fits any standard garden hose and pairs with quick-connect accessories for instant nozzle swaps.
PRECISION CONTROL AT YOUR FINGERTIPS - Easy on/off sprayer control plus an anti-siphon valve protects your water supply from contamination.

The Chapin International G390 Lawn Hose End Sprayer features a 32-ounce chemical-resistant tank capable of spraying up to 20 gallons per fill. Made in the USA with global materials, it offers universal hose compatibility and quick-connect readiness. Designed for professional-grade lawn care, it includes fingertip on/off control and an anti-siphon valve to protect your water supply, plus a removable fan nozzle for versatile application.

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Brand	Chapin International
Tank Volume	32 Fluid Ounces
Colour	Translucent White
Recommended Uses For Product	Fertilizer Application, Garden Care
Material	Plastic
Item Weight	136 g
Product Dimensions	10.7W x 21.1H Centimeters
Style	Handheld
Power Source	Hand Powered
Included Components	Instruction Guide, Nozzle
Model Name	G390
Hose Length	1.5 Metres
UPC	023883000035
Global Trade Identification Number	00023883000035
Item model number	G390
ASIN	B00UER1SKK

Chapin International G390 Lawn Hose End Sprayer for Fertilizer, 20-Gallon

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