RO/DI not shutting off

Poriferabob · Oct 9, 2022

Hello all,

I am losing my mind trying to figure this one out.
Over the last few months, my BRS RO/DI unit has been making a (I hate to call it this but it seems to be a popular description) "farting" noise.
Every time this happens the pressure gauge is dropping so it is cleary a loss of pressure somewhere.

I have replaced about every component I can and nothing is fixing it.

It does continue to produce wastewater even after it shuts off.

Wouldn't that mean flow restrictor or Auto shut off valve?

Please some one help me figure this out

WVNed · Oct 9, 2022

I had to replace my auto shut off valve. Mine made a strange noise you could only hear on the other side of the wall it is mounted too.
The flow restrictor has nothing to do with it shutting off.

theMeat · Oct 9, 2022

It’s the white box with four lines going into it/ the auto shut off. Even a properly working auto shut off takes a few minutes to shut, and farting is not a problem

Vsrt17 · Oct 9, 2022

Mine would make a ridiculous loud vibrating. My issue was the orientation of the auto shut off and and wasn't properly plumbed. Also sometimes if the float valve isn't setup correctly it won't allow it to fully close.