Used RODI setup and pipes in walls humming

[Newbie664]

Is this normal?

 

[rickyb]

Unusual. Possible leak?

 

[Newbie664]

Even if running it outside off garden hose?  I'm doing it this way to put waste water in pool.

 

[Newbie664]

Any plumbers with inputs?

 

[Opus]

Do you have any way to check the water pressure?  You should be at 80psi or below.   Could be the back pressure from running the RO is causing it.

 

[Newbie664]

I did buy a water pressure meter.  I'll check.  What if it is above 80psi?

 

[Opus]

You should have a water pressure reducing valve between your house and the city water line.   Mine is in the front of the house in the bushes.  It looks like a smaller version of the main valve that is out by the street that the city uses to turn your water on/off.   You tube has plenty of videos on how to adjust it.