Does this use incoming water to push out the solution, thus diluting it more and more as you go?

Hi, yes water does go into the tank of the 4720 HydroFeed 2-Gallon Fertilizer Injector diluting the chemical as it flows. If we can help with any further questions, please feel free to call our Technical Customer Service Team at 800-444-3140 and they will be happy to assist you. Thank you for your question and for your business, we appreciate it. Chapin Customer Service

Will this fertilizer injector work on drip tape?

Hi, the Chapin 4710 HydroFeed 1-Gallon In-Line Auto-Mix Fertilizer Injector System has a standard operation pressure of 40-60 PSI. A minimum flow rate of 2 gallons per minute is required for the unit to function correctly. If you have any other questions please give our Technical Support team a call at 1-800-444-3140, option 1.

Can this unit stay under pressure without failure? I want to install it before my 4 zone timer.

Mine failed at 40 PSI after 5 days and made a big mess. I currently have a call into the company to see if maybe it was a defect in manufacturing because it is right along a seam in the plastic. There is nothing in the manual that says it can't be under constant pressure as long as it is 60 PSI or less... has anyone found an alternative in case Chapin comes back and says it is not meant for constant pressure?

It sounds like there is zero quality control during manufacturing. They even sent a person a used product. Why should I buy this item?

Fortunately, I did not run into any issues with either the product/the manufacturer. Sorry I couldn't help.

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🌿 Feed your lawn like a pro—never miss a drop of green greatness!

EASY SETUP CLEANUP - Quick-connect hose fittings and drain valve make installation and maintenance effortless.
CLEAR TANK MONITORING - Translucent 2-gallon reservoir lets you track usage without guesswork.
VERSATILE APPLICATION - Compatible with liquid, granular concentrates, and fish emulsion for all your garden needs.
INNOVATIVE MIXING TECH - Patent-pending design prevents chemical dilution for consistent nutrient delivery.
PRECISION FEEDING CONTROL - Adjust fertilizer flow from 1 to 10 oz per gallon for tailored lawn care.

The Chapin 4720 HydroFeed is a 2-gallon in-line fertilizing injection system designed for sprinklers and direct hose use. Featuring a translucent tank for easy monitoring, variable rate adjustment from 1 to 10 oz per gallon, and a rigid inlet tube with filter to ensure debris-free mixing, it delivers precise and efficient fertilization. Its patent-pending design prevents chemical dilution by adding water on top of the concentrate, ensuring consistent nutrient application. Easy to connect and clean, it’s ideal for professional-grade lawn and garden care.

€ 220.82

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

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Great experience from order to delivery. Highly recommended!

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Item Dimensions W x H	7.38"W x 8.63"H
Item Weight	1.4 Pounds
Tank Volume	1 Gallons
Material	Nitrile
Color	Translucent
Maximum Pressure	4E+1 Pound per Square Inch
Power Source	Air Powered

Chapin 4720 2-Gallon HydroFeed in-Line Fertilizing Injection System for Sprinklers and Direct Hose Use, 1-Pack, Translucent White

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