Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
Man that meter is cheap! I'm gonna have to get one of them. I'm presently using the Pinpoint TDS meter so I just stick it in a sample of water and check my RO/DI units that way. While I'd still use the Pinpoint meter it would be nice to have a unit mounted on the RO/DI unit itself!
I just upgraded to the in-line like Rich and Brian's. Everytime I run the unit, I check. I have a bypass on the DI stage so run the RO into the drain until it drops to and settles, usually in 1-2 minutes, then I switch to the DI unit and check that TDS is 0.
If it's a long run , I check back and make sure all is well. I keep my handheld to check my storage container.