EZ-FLO Quick Connects

Step 1: Install the Valves
Install one shutoff valve on the inlet connection and one on the outlet connection of your EZ-FLO fertilizer injector tank. The quick connect fittings push and lock into place on the injector's tubing ports.

Step 2: Run Your System Normally
With both valves open, your EZ-FLO system operates as usual — injecting fertilizer into the irrigation line every time water flows through it.

Step 3: Shut Off to Refill
When the tank is empty or you need to refill, close both shutoff valves to isolate the injector. Water will continue flowing through your irrigation system, bypassing the injector.

Step 4: Disconnect, Refill & Reconnect
With valves closed, disconnect the tank from the quick connect fittings. Refill with your chosen liquid or water-soluble fertilizer, then reconnect and reopen both valves to resume fertigation.

What EZ-FLO units are these quick connects compatible with?
These quick connect shutoff valves are compatible with all EZ-FLO hose-thread fertilizer injector units, as stated by EZ-FLO Injection Systems.

They are not designed for mainline or high-pressure EZ-FLO systems that use a CBV Coupling Ball Valve for inline pipe installation.

Can I keep the water running while I refill my EZ-FLO tank?
Yes — that is the primary purpose of this kit. Closing both shutoff valves isolates the injector tank from the water line, so your irrigation continues while you disconnect and refill the tank.

This is especially useful when your EZ-FLO injector is connected after a timer, since you won't have to interrupt an active watering cycle to top off the fertilizer.

Do I need a backflow preventer when using a fertilizer injector?
Yes. Any irrigation system using a fertilizer injector must include a backflow preventer to stop fertilizer from flowing back into your domestic water supply.

Check with your local building inspector or contractor to confirm which type of backflow preventer is required in your area.

How often will I need to refill my EZ-FLO tank?
Refill frequency depends on tank size, your flow rate setting, and how often you water. On the slow (maintenance) setting in moderate climates, a full tank typically lasts 4 to 6 weeks.

In hot, dry climates with heavy watering schedules, the tank may empty faster. Heavier settings (Fast) will also deplete the tank more quickly. These quick connect valves make the refill process fast and hassle-free regardless of frequency.