Dave, It's slimy(algae), now should I apply poly first or just skip
the poly.

I have both Bleach and Leslies Power Powder plus(calcium hypochlorite 73%)
Which one should I use or doesn't it matter.

My test kit just does free and total chlorine and says to subtract them
to get the combined. So according to my numbers it should be 0.

Not to add a third question on, but my test kit has the tablets for the
chlorine test, they say it's better then the drops. Any opinions.

Steve