1 Inch Irrigation Venturi Fertilizer Injectors Device Garden Water Tube

Did not create any suction

Using mine with a 2 inch gas pump to fertilize my lawn. The hole narrows to about an inch to create the venturi effect that siphons the fertilizer out of the tank. Could only operate the pump just above idle to keep it from bursting my hose. I put a ball valve on the suction end to regulate the amount of fertilizer it draws out. 1/2 open it sucked 20 gallons in about 13 minutes. Fully opened it sucks 20 gallons in about 5 minutes. Keeping that in mind, it works very well for my application. With a large pump like mine, you need to incorporate a bypass or a way to quickly disconnect it from the line to be able to run a large volume of water.

Works well, had to buy some fittings from an irrigation shop to make it fit my existing spa hoses but it does the job!

This device really sucks. Exactly as it should. In fact it sucks a little to well. I'm using it to inject bleach into an aerobic system. It pulled almost 2 gallons in about 5 minutes. I'm turning the valve in the tubing down to see if I can slow it down. 2 gallons should last a month. The tubing orifice is for 3/8" tubing. Not 1/4" as someone said in q&a. Had to go to Ace and get an adapter to step it down to 1/4".I'd previously tried using a 1/2" venturi with 1/4" tubing orfice in a by pass line that did not work. Installed this directly inline and worked immediately.Only thing I might do differently is try a 1 1/2" and adapt to my 1" line. The restriction in this venturi looks to be about 1/2". My pump volume is strong enough to handle more. Might reduces the suction too.

I used this to upgrade my lifereef skimmer after using a much bigger pump to feed the water.