EZ-FLO Coupler with Ball Valve (Hose Thread)

Connect your EZ-FLO injector to your hose bib and dial in the perfect fertilizer rate.

Step 1: Assemble Your Head Assembly
Starting at your outdoor faucet (hose bib), install your backflow preventer first, then your irrigation timer. A backflow preventer is essential when using any fertilizer injector to prevent nutrients from contaminating your potable water supply.

Step 2: Install the Ball Valve Coupler
Thread the 3/4" Female Hose Thread (FHT) inlet of the 3060-BV coupler onto the outlet of your timer or valve. Hand-tighten firmly to create a leak-free seal with the internal washer. Then connect the 1/4" flexible tubing from your EZ-FLO injector tank to the stainless steel barbed tubing connectors on either side of the coupler body.

Step 3: Attach the EZ-FLO Injector Tank
Place your EZ-FLO injector tank on the ground near the faucet. Connect the 1/4" flexible tubing from the tank's inlet and outlet ports to the two stainless steel barbed connectors on the coupler. Fill the tank with your chosen water-soluble or liquid fertilizer.

Step 4: Connect to Your Drip System
Attach the 3/4" MHT outlet of the coupler to your pressure regulator, followed by your inline filter and then your drip mainline tubing.

Step 5: Adjust the Ball Valve for Your Flow Rate
Turn on the water and allow the system to run. If operating at low flow rates (below 120 GPH), gradually close the ball valve by rotating the handle. This restricts bypass flow and forces more water through the injector, activating it at lower flows. To slow down fertilizer injection — and increase the time it takes to dispense the tank — close the valve further to reduce differential pressure. Refer to the EZ-FLO CBV feed chart (available from EZ-FLO) for specific injection rate guidance.

What is the difference between this ball valve coupler and the standard EZ-FLO hose coupler?
The standard EZ-FLO hose coupler has a fixed, fully open bypass passage, while the 3060-BV ball valve coupler includes an adjustable ball valve that lets you restrict that bypass flow.

This restriction increases differential pressure across the injector, allowing it to operate at lower flow rates and enabling you to fine-tune exactly how quickly fertilizer is dispensed into your irrigation line.

My EZ-FLO injector isn't feeding fertilizer. Can this coupler help?
Yes — if your system's water flow is below the ~120 GPH minimum needed to activate the EZ-FLO injector, partially closing the ball valve on this coupler can create enough differential pressure to get the injector working.

Start with the valve fully open, then close it slowly in small increments while the system is running. Once you see fertilizer beginning to feed into the line, you've found the right setting for your flow rate.

Does this coupler work with all EZ-FLO injector models?
Yes. The 3060-BV hose connector with ball valve is compatible with all EZ-FLO fertilizer injector makes and models and does not require the use of the EZ-FLO flow disc system.

It is designed specifically for hose bib (3/4" garden hose thread) installations. For mainline pipe installations, EZ-FLO offers separate CBV and CBVT socket/threaded couplers in sizes up to 4".

Do I need a backflow preventer with this coupler?
Yes — a backflow preventer is essential any time you are injecting fertilizer or any other chemical into your irrigation system.

Without a backflow preventer, fertilizer solution could potentially be drawn back into your home's potable water supply. Install a backflow preventer at the faucet, upstream of the coupler and injector, in every fertigation installation.

What types of fertilizer can I use with the EZ-FLO system and this coupler?
The EZ-FLO system is designed for use with water-soluble dry fertilizers and concentrated liquid fertilizers.

Only use fertilizers that dissolve fully in water to avoid clogging the 1/4" tubing and barbed connectors. Visit the EZ-FLO compatible fertilizers section at DripWorks for compatible product options.