slimy pool bottom and sides...high chlorine

[Melbal]

I have ordered the test kit. I plan to begin this regimen on Sunday. I still don't understand the muratic acid instructions . Sorry the pH is currently in range along wih alkalinity. The chlorine is really high but I am still on vaca and can't test with the new drop kit. If the PH is in range when I get started on Sunday do I still add the borax and muratic acid? Or do I just do the bleach? Am I trying to lower the CYA at all?
I will purchase the borax and muratic acid as needed I am just not sure why I am doing that.

[BigDave]

The Borax + Muriatic Acid is intended to establish an effective Borate level in the poolwater. Borates at 50 ppm or so are effective at supressing algae. Borax contributes the Borates. Borax raises pH. The Muriatic is added to compensate for the pH rise caused by the Borax.