Hydronix RO-152-W14 Reverse Osmosis 6 Gallon (5.5 Draw-Down) Water Tank - White, 1/4" Port

Works great.

This worked perfect

perfect replacement for my reverse osmosis water storage, plus stainless steel great price to and again faster delivery then estimated

Pre pressurized. Works great. Smaller footprint

Tank would not hold but maybe 1.5-2 gallons of water. Contacted manufacturer and they advised to drop the tank pressure to 5-6 psi (my as found was 10 psi). After doing that, I left the tank on my 75 gpd RO System overnight. Next morning, tank weight was about the same as before. Bled it down and got about a gallon and a half out of it. For Kicks and Grins, I bled the air side of the tank down to Zero and put it back on the RO System. 24 hours later, about 1.5 gallons came out of it once again. It appears that the bladder is installed wrong and/or it is stuck to the side of the tank. Its headed back to where it came from.

I have used a 5 gallon tank over the years, but find they only last about 3 years with the membrane leaking, and available water storage being limited. Like my 5 gallon tank after 3 years will only fill a cup around 36 ounces of water before the water starts coming out slowly. I'm guessing this smaller tank will do the same in a few years, but right now it's running at high pressure for at least 3-4 minutes before moderately slowing. Dealing with replacing a smaller tank is just more convenient, but you aren't going to notice a difference in the output between a large and smaller tank for most applications.

Sturdy, strong design. This 5 gallon model works as a direct replacement for my 2.2 gallon tank that was almost 10 years old. I reused the valve from the old tank, if you don't have one, you will need to pick one up. It works in either the upright or horizontal orientation. I put 9 psi of pressure in the tank before I filled it. Working as designed.

I am not sure how this is a 3.2 gallon tank when compared to the 3.2 gallon tank I am removing it is 2/3's the size.