Storing DI resin

[ramsey]

Two DI carts work. It typically works best if you monitor the TDS after the first cart, and after the second cart. When the first climbs above 1, move cart No. 2 to the first position, and put a new one in position No. 2. This way you make sure nothing but 0 ppm TDS water makes it to your tank.

Russ

Awesome, that's a great idea. I think I'm going to do that.

Yet another question for you! I'm planning on making some changes to my unit, one being running two DI, the other involves using solenoids to get more life out of the DI resin. My plan is to have a minimum of three solenoids hooked up. One from the main supply going into the unit and hooked up to my float switch, another connected to a T after the RO. My thought is, have a solenoid turn on to let water flow straight form the RO and into the waste water. The have the other solenoid turn off to keep that water at the RO membrane. Essentially, I want to just drain the first minute or so of water coming out of the RO, then have it go through the DI for my production water. Does this make sense and does it sound like a good idea?

One more thing I just thought of, I bought the maxr membrane about six months ago and in getting about a 96% rejection rate. Should it be higher than that? Would flushing it help?