Quote Originally Posted by aylad View Post
I don't think that your equipment is at risk as much as your liner is, and whatever damage it's going to sustain has been done already. As far as the sodium carbonate, you can try brushing the pool several times daily in an effort to help dissolve it faster or help the filter catch it, or you might want to consider vacuuming it to waste and starting over with borax dissolved in water and then poured in through the skimmer.

As JohnT said, your pH result is usually false when the chlorine level is above 10 ppm, but it's usually falsely HIGH--so don't ignore the problem, because your pH may be much lower than you think it is. What made it drop like that? Was it something you added, or has it been awhile since you checked it?

Janet
Thanks for the help everyone.. I'm not really sure what made it drop. I assume now that all the chlorine I added gave me a false reading. Could the chlorine boost have damaged the liner at the waterline, or something else? It's a nasty brown color.. kinda rough too. Fortunately it doesn't look bad further down towards the bottom.

I'll check and clean the filter tomorrow and attempt to vacuum out the silt. I may not have added enough DE this past cleaning. Hopefully it'll catch it. Thanks again...