Hi, my RO/DI's pressure guage always hits 60psi when running. Recently it only gets up to 30psi...I tried a different pressure guage to confirm and its really only 30psi. However the water pressure going into the unit is 60 psi. I changed the large 4 outlet valve, the waste water pressure tube, the check valve and the RO membrane. Still the same. The only thing let is to disconnect at every point and test pressure. But was hoping to narrow it down with someones knowledge or previous similar issue. Thanks

