Thanks, I guess I'd better get to work on plumbing in the filter then. Is there any type of phospate remover that's better than another. I usually deal with Pinch a Penny for chlorine and CYA, so I'd probably get what they carry, unless there is one that works better. Looks like this could be the summer for borates also if that will help. Can you tell me if that effects the taste of the water at all? Not that we drink it!

I also remembered that I haven't used the spa in well over a year, so I dumped a bunch of chlorine in it and switched over the returns and drain to spa to cook the jet pipes and spa return pipes for a while. I've yanked my non functioning heat pump and we wont' be using the spa other than to look at. Perhaps I should slightly open the drain and return for it so pool water is always moving through sth spa piping. Or would just switching the valves weekly for a few minutes to the trick.

I'll let you know how it's going once I get the plumbing changed around.