help with RODI system.

[LeftyReefer]

Are you flushing your (new) carbon filters before installing the RO membrane? New carbon blocks can shed carbon fines into your ro membrane if you don't flush them first.

And are you opening the flush valve on the membrane for 10/15 minutes before closing it to produce water?

I'd check the seals on the membrane and make sure they are all seated correctly too.

 

[cst0215]

Thank you for the input. I did flush the new carbon by disconnecting the line entering the RO membrane and connecting the output line to it. I did notice carbon fines exiting this flush line.

I have been flushing the RO membrane before use. Tonight I flushed it for at least a half hour, then closed the flush valve and made clean water for an hour and noticed no drop in TDS.

I checked the seals and they appear good, will check again.

Could I possibly need to clean the system with bleach? (Excluding) the filters, resin, and membrane)

I also thought maybe the drain line was back flushing into the membrane so I installed a check valve. It did not improve anything.

Perhaps a new membrane housing?