Originally Posted by obscurereef
I don't know...how do I find out just the RO TDS
? Do I just take out the resin and run it that way to test?
Well, for future reference, you can do one of two things to make your life a little easier....
First, cut the line going from the membrane housing to the resin canister, insert a T with a valve line which enables you to pull RO
only water.... this is what I use for freshwater blending so I'm not wasting resin. You can use this as a sampling line.
OR, pony up $25 and go to BRS on one of the bulk buys & get yourself a digital dual inline TDS
meter.... aside from the 150gpd upgrade, this is one of the best purchases you can get for your RODI