What's new
Car Wash Forum

This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

RO water in tank is much higher than discharge water

The RO water coming from the machine has a TDS of 12 but the water in the plastic tank has a TDS of 21 I drained the tank a month ago, why is it so high?
 
Although 21 is not very high, you probably have a leaky check valve somewhere that is allowing water to backfeed into the product water.
 
Back
Top