Gohot
New Member
I currently have a 5 hp well pump 170 feet down, feeding a 385 g bladderless tank, with a 2 inch pipe. Ok for the home, but now have irrigation demands. The set up is ok for the sprinklers, stay on at approximately 45 psi while the sprinkler banks are working. However, when running the drippers, the pump cycles too frequently. So, I added a second tank, twice as large in capacity, on it's side, with the center at the same level as the upright first tank. The tanks are connected with a T after the pressure valve. Both tanks have a side mounted air bleed valve to let out extra air. The tanks are connected to each other from the top of the lateral tank to near the top of the upright tank with a 3/8 line to equilibrate the air pressure above the water line. In theory I expected this set up to work. In practice, I do not believe I am using the water in the lateral larger tank. It seems the larger tank waterlogs while the smaller one is working well. I may be over theorizing, but I suspect the same pressure (adequate in the smaller tank) is insufficient in the larger tank because there is more surface area in the larger tank to spread the pressure coming from the connected small tube from the smaller tank. Does anyone have experience in hooking up multiple bladderless pressure tanks and can shed a little light? Appreciated. ts