I am trying to set up an off-grid water catchment system. Right now I have an RV pump sending water down a line into a 20 gallon pressure tank, then into the house.
Problem is, the pressure tank is supposed to have 6-8 gallons of drawdown but is only giving 1 gallon. I have already checked the pressure, and the tank is holding pressure just fine. It seems like the water isn't getting into the pressure tank to fill it up.
