My indoor vinyl pool has very high CYA levels -- should I drain it?

[BigDave]

Does the sun shine on the pool water when the building's open?
I have to tell you that very few people on this forum have any experience with indoor pools and I'm not one of them.

[Watermom]

I'm going to ask Ben to look at this thread.

[swimnfun]

I have gone ahead and emptied part of the pool and am refilling. We cleaned out the sand filter by washing it thoroughly with water to hopefully get rid of some of the stabilizer. It was pretty murky white. I have tested chlorine levels at the halfway point of refill and the total chlorine is now 15.0. I will test everything once pool is full. I have had the doors open with sun hitting it this afternoon and hope that will deplete some of the chlorine as well. I hope this takes my CYA levels down to a more manageable level for balancing chlorine and not having to supershock at such high levels. Wow! With all the researching I have done I feel I could have a chemistry degree . Sure appreciate all the information here. I guess after 21 years of pool ownership and no major problems I feel pretty good. I have been thoroughly educated and an education is worth much to me whether it be in pool maintenance or??? I guess I will need to read up on winterizing as we always floated pucks in the water and me thinks this is how the CYA increase happened. Thanks