NEWTRY 0.4%~4% Adjustable Fertilizer Injector Water Powered Chemical Liquid Doser Dispenser 4.4~660.43 gallons/h Drip Irrigation Injector Dosing Pump for Industry Garden Hose Livestock (0.4% -4%)

The first one I bought leaked horribly through the bottom. Support was great and Cassie diagnosed a faulty check valve and sent me 3 replacements. I was very near the end of the return window so I opted to return the unit and have a new one sent. The new one works perfectly. This product makes it easy to fertilize regularly (something we've never been able to accomplish). Now we simply throw the Miracle Gro packets in a 5 gallon bucket, fill it up with water, stick the siphon in the bucket and turn on the sprinkler. Easy Peasy.

I've got two of these now. They work well and are easy to set. The ones I ordered are threaded for 3/4" NPT male.One of the units, when connected, leaked profusely. I had the unit for a while before I opened it up to use it so it was near the end of the return window. I opened the unit to find that the o-ring between the top and the lower body was broken. Instead of doing a last-minute return, I contacted the company via e-mail to ask about a replacement. They were responsive, asked for a picture of the damaged o-ring to confirm which one it was, and then sent me three replacements free of charge. That's only one experience with their customer service but it was a great experience.If it comes time to add dosers like this to our setup, I will buy more of these. They're far less expensive than the "big brand names", work well, and the one occasion I had to need customer service they delivered well.

The product had issues right out the box. It didn’t work at all when I initially set it up, no output. I reached out to customer support and they forwarded a troubleshooting video. I took it apart, couldn’t see any obvious problems, reassembled it, and it worked, but took over two hours to empty a five gallon bucket. After the third bucket it quit. I’m returning it. I’m disappointed it didn’t work.

They sell 2 identical products a few $ apart, one had drip at the start of title the other mid title. I missed the other and thought it was general irrigation/sprinkler. That’s on me. Works great for drip though and will keep it.This holds LOTS of concentrated fert in it and therefore you can really only use it for one fert, would be wasteful and take forever to clean and change its use. If not for that I’d give it 5 stars.

I use three of these injectors for my fertigation system. They have been running for around 3 months. As previously stated some of the labeling is written in Chinese. Like the other review this caused me to blow out the bottom piston releasing water. After some troubleshooting I figured it out. Also as noted one of the springs just broke. Newtry provides replacement gaskets and springs in the package which is very nice to have for these kind of situations. The customer service is on point. I inquired about springs and Newtry sent me a link to a 10 pack of springs on amazon.I also have taken the extra step to buy some food grade silicon lube for the O rings. Im hoping this prolongs the life of the gaskets.These injectors are not perfect but for the price id give them 5 stars. I haven't used dosatron or mixrite injectors but I hear they have similar problems. For the price this item is totally worth it but does take some work to maintain. Would buy again and recommend.

el sistema es bueno, he comprado ya 4 pero uno de ellos si me fallo, al intentar comunicarme con el proveedor fue imposible, aun estoy a la espera de una respuesta ya que el equipo falla y aun con su kit de mantenimiento la falla persiste. Me parece que no tiene soporte tecnico o respuesta de parte del fabricante cuando se presenta una falla

DO NOT BUY THIS ITEM UNLESS YOU ARE VERY TALENTED IN THE AREA OF MECHANICAL ENGINEERING.It comes with very weak instructions and a manual that was so poorly printed that it was almost impossible to read.It does come with an extra parts kit, but no diagram showing where the parts go.The first time that I used it, it appeared to work well; however, the valve on my hose sprayer got stick in the open position. I thought that maybe a chunk of fertilizer had gotten stuck in the valve.When I inspected the valve I found an O-ring had stuck there.Scratching my head, I compared the O-ring to the spare parts kit, and there I found an O-ring of the identical size.I disassembled the injector to find that in the mixing chamber there are two identical valves that work in sync during the operation.One had an O-ring and the other had a groove where an O-ring should have been.That was the problem; poor manufacturing QA.I had to disassemble the upper portion of the injector in order to replace the poorly installed O-ring.The disassembly process is not self evident and that's why I said that you should be very familiar with modern engineering processes, or you will not have success in maintaining this item.Overall it works as advertised, however, I don't think that it is the right product for long term commercial use.Think of it as a contractor grade tool that you buy at the big box store.It's good for one or two jobs, but after that it's worn out.I plan on using this to fertilize my yard and garden, so it should last longer than it would in continuous commercial use.Quality grade commercial products exis, but they cost many times what this item does.You get what you pay for.