WayneLScott
Well-known member
The alk of DI water is close to 0. Also, I don't think our test kits have the ability to test for alk or pH in DI water.
I'm pretty sure once you get your TDS down to 0 the PO4 will follow.
Thanks for chiming in Mike. But whats weird is with my saltwater mixing at 1.023 my alk is suppose to be between 7.3-7.7 and its reading 9 and I don't know why.