Hi Janet,

Thanks for your advice. We will shock it today and keep the chlorine level up.

The calcium hardness level was 160. We don't use any products besides the chlorine. Yes, we have been using the trichlor pucks and have now turned off the chlorinator.

The pool is actually concrete.

My husband and I think since we need to get the CYA down anyway that we will just start emptying. I think running a hose into it while it's emptying is counterproductive.

We did try the flocculent twice over 72 hours and there was no change.

Appreciate your thoughts.
Mary