Liquid shock, bleach, liquid chlorine?

[CarlD]

That's what my pool builder said...he told me that there was lye in bleach, and not in pool chlorine.

Of course, he also told me that the trichlor tabs would each add the right amount of CYA for that amount of Chlorine, and I would have to keep using them to keep my CYA in the correct range.

He also told me to call him in the summer when I get the mustard algae like everyone else he knows gets, and he would put some copper stuff in my pool that would take care of it.

I got a little mustard last year, and knocked it out with the laundry bleach that will eventually ruin my liner

I hope you figured out that your PB should never again be allowed to do any maintenance on your pool.

Follow our suggested rules for maintenance and you should NEVER see mustard algae at all.

If you need copper to kill algae you've waited too long anyway--IMHO.