Is 86 psi too much pressure for a ro/di

[daltrey]

i have a ro unit and it runs continuously when i turn it on. i've let the tank fill up but it sounds like the membrane in the tank is about to burst, so i shut it off. the water is only running through the filters now. my psi is 86 at my sink. i know i can install a pressure regulater oustide but i don't feel like digging into the ground to install one. do they make one that i can install on the ro unit. does anyone else here have a pressure reading that high?

 

[reefnut]

It depends on your RO unit but mine has a 75lbs max. I simple ball valve just before the RO unit will allow you to cut back the pressure.

 

[daltrey]

i've tried that, it just cuts back the flow but the pressure is still 86 psi. i was wondering if there is some type of pressure regulator that i can install before the ro unit? does anyone else have this problem?