NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent

Seems pretty accurate mix rate. I tested (by weight) at 4% and 2%. Came out as 3.8% and 1.7%. Looks like I set the gauge a little low (it's not a very precise marking system). I have not used it with fertilizer yet. no leaks so far (I've only put about 20 gallons through it). I just followed the priming instructions.I built a system with mostly brass parts along the bypass, then some schedule 80 and brass for the mix loop. I also included a drain valve. It's mounted on an aluminum 1.5" angle (painted green) on two U posts. Nice and sturdy, but still moveable with a little effort. I used an RV water pressure valve at the inlet so I can control the system pressure and included a meter at the outlet so I know the pressure going into the drip system.

This fertilizer injector has been great, we have been using these injectors for about 2 years, this is the second unit we get. So far, no issues. We use it for our nursery and farm and it has worked great for us. I would buy again. additionally is much more affordable than the leading brands.

The media could not be loaded. Bought this to fertilize my lawn after spending what seemed like forever with the hose end siphon sprayer. Seems to work just fine. Installation was easy, I just mounted it to my concrete foundation wall with the bracket included. No leaks this far. I am using a 5 gallon jug to premix my fertilizer and then have it set for 1%. I haven’t done any calibration other than measuring the flow rate coming out of my sprinkler with a drywall bucket. Based on my 3.6 gpm flow rate it seems to be drawing down in the jug at the rate I would expect. My only issue I may need to work on is adding a better filter. I’m using unfiltered water from my well, and I’ve had to check the inlet filter on my check valve. That had nothing to do with this device, just saying that buying a larger filter is probably a good idea. I think I will a big blue filter to the arrangement so as to get good flow without cleaning often.

I built a copper pipe bypass system to install this - so spend $$$, on the main water line for our backyard. Shoddy construction, stops working after 5 mins, inconsistent, and started leaking after the first hour of use. Its probably ok to connect to a garden hose, but if thats all you need to do, there are better simpler solutions out there. And they dont include a spare rubber seal for the main enclosure -- ours broke while tightening the top hub, and now there is nowhere to buy that part ! Nor it its size published for me to look for one independently. How does one have so many issues with a product within the first hour of use !And the central rod is made of cheap plastic, just snapped !Their customer service is quite poor - 3 weeks to send a rubber seal, bs back and forth that "it has been shipped" to "we havent shipped it yet". Still nowhere to be found - all you get is copy and paste emails with soothing language.Dont waste your money. Its a waste

This item is wonderful and it works perfect Functionality:it works great in my irrigation system

This is the newer upgraded product.No doubt the upgrades are real. Nice to see a company improve something when improvement is certainly possible with things such as this.Nice 👍🏻

Works as it should

The checkvalve supplied leaks and if you dont use it water steady comes out of the pickup line when unit is not in use. The unit does function as described otherwise