Review on Effortlessly Maintain Your Garden With KIMO 3 Gallon Electric Backpack Sprayer- 20V Battery Powered With 3 Water Nozzles And 2 Extended Wands by Matt Williams

The sprayer is easy to use, comfortable to wear for the most part, and the pressure/psi is great. I bought it for applying herbicide to my lawn so I took it on a test run filled with water to the 3 gallon level. Unfortunately, it leaves approx. 1/2 gallon of liquid in the tank before spraying slows to a trickle as if it's empty. This pretty much makes it a 2.5 gallon sprayer which might be fine for some of you. I really want to like this sprayer, but I'm close to the edge of really needing 3 gallons without having to remix additional herbicide and I also hate having to dispose of that last 1/2 gallon that will always be left in the tank. Another issue I had was that the instructions mention the pressure relief valve. Most I have seen are a small pull up button, but I couldn't figure out where the valve was so I emailed customer service and they never responded. The directions make no mention of where it is. There is a small rubber disk on the top of the screw on cap and when you push it, it falls into the tank. I'm assuming that's what it is, but again no mention of it in the instructions. I would have rated it 4 stars as I think it would be a great sprayer for some that don't need the full 3 gallons, but the fact that customer service didn't