Originally Posted by 00youknowit00
Awesome!! I just bought mine on Amazon, $20 shipped!
One of those little things that no reefer should be without.
Now, when you get it, check your tap water, then compare that to your RO
only before it goes through the DI
canister. You should
be getting about a 98% rejection rate with a clean RO
membrane.... Currently my tap is 450TDS, and my RO
is 8TDS (8/450=1.7% getting through or 98.3% rejection).
You can let the TDS
climb a bit coming out of your membrane, I let mine go to about 95% rejection before changing it..... just remember, the higher the RO TDS
, the faster it's going to chew through your DI