NEWTRY 0.4%-4% Fertilizer Injector for Drip Irrigation Adjustable Water Powered Dosing Pump 3/4" NPT

Very good price and quality seems good for pricepoint. Has been installed and running fine for a few weeks now. No leaks and no issues thus far. Adjustments allow precise control for dosing, so I can set it at 250ppm and it seems to dose consistently. The added bits for connectivity seem to not be needed for anything, but do appreciate the fact they sent along a repair kit for any probable or eventual failures that may be common for this type fertigation option.

I have used Dosatron systems in my greenhouse for years. I needed to order some parts, so I grabbed this injector as a full in until my parts arrived. It came and set up was easy, came with a rebuild kit and extra parts, all things I would have to buy separately from dosatron. It has been up and running smoothly for a week. It works so well I will leave in use unless something stops working. I will update review if that’s the case. Also seems to leak less than the dosatron, I believe this is because they include a wrench for the top.

I haven't spent much time with this but I'm pretty happy with it so far. I did a quick setup to see how it would work before I had to shut everything down for the fall. It is difficult to seal the threads so you'll have to pay extra attention to that. Overall it worked really well.

This is my second one of these. I grow expensive and rare orchids in a grow tent. The first one I purchased after six months would not hold the proper fertilizer ratio. After nine months, even though I did all the appropriate maintenance, it started leaking and failing to inject fertilizer. I did all the necessary repairs, but it still did not work. So, I purchased a second one to hold me over until I could save enough for a MixRite. When I opened it, the caps over the threads were loose, and there wasn't any water inside. I didn't think anything of it, surmising they came loose during shipping. It made a horrible squeaking noise. I used the recommended vegetable, and the squeak went away. Two weeks later, it also stopped injecting and leaking. As I adjusted the ratio, the whole bottom stem part popped off and sprayed water/fertilizer into my mouth, eyes, and basement floor!! I disassembled the entire unit only to find that one of the O-rings had been replaced with an O-ring that did not fit, making it impossible for the piston to move smoothly within the shaft!! This was a used unit that someone had tried to repair using their own O-ring. They then returned it, and Amazon then passed it on to me!! I am so furious about this about this. I will not be buying another one, and I recommend you don't either

this is the second one I have needed in 12 years. not a bad length of time for it to work

Excelente!

I purchase the Newtry fertilizer injection system to feed the flower garden growing around our household. It works as reliably as my neighbors $500 injection system in his commercial greenhouse! To winterize the system, I simply removed it from it's mounting bracket and brought it indoors. Next spring, I will change the plumbing to create a bypass line around the injection pump. It would be nice to have an internal bypass valve for those times when you want to wash a vehicle.

mine worked great, until they didn't. I purchased one about 4 years ago and it worked well until it stopped. I tried repairs, greasing and other things that were suggested and it continued to function but it stopped working during the second year of use. It didn't get a lot of use, I only have a small garden. I had my system designed it use this unit and it did work ok while it did. In any case, I purchased another one (newer green model). This again worked well for a while then stopped pumping. I'll be looking for something else as a replacement.

Works great for low-flow drip applications where cheap venturis don’t work.

I've had a couple of these, the first one lasted about five years and only failed because of a severe frost coupled with me not emptying the chamber which is easy to do, just push down on the big button at the top, ces't la vie. Anyway, second one installed and working fine. 🤞🏻 no sever frost and if so I remember to empty the chamber. I grow trees for a living and have an extensive network of irrigation pipe coupled to this dosser, so I can micro-dose the plants with liquid feed. Very effective, happy to recommend 😉

Funziona bene e permette di nutrire le piante con concime liquido direttamente durante l'irrigazione. Per me che uso compost liquido concentrato è comodissimo.

Pour l'instant très bien après 6 mois d'utilisation assez intensive.

Funciona perfectamente, mucho mejor que un venturi y sin problemas de presión o de caudal. Un poco caro y bastante ruidoso, pero el jardín lo nota y está espectacular.