Hey y'all. Hope everyone's doing o.k. Been off the forum for awhile.
Last summer I had a small issue with cobalt staining. Nothing too severe and only I noticed it. After posting pics and getting advice here, attribibuted it to low Ca. Since I don't fully understand all the the chemistry details, is it important to keep the calcium level up around 250-300 during the winter months? Does this leaching of cobalt from my fiberglass still occur in very cold weather?? I've had to drain water from my pool on 2-3 occasions due to rain and I'm sure the calcium has gotten a little low.
Thanks for any answer, and I hope to hang around here more often
BTW, my water temp is in the upper 30's. Pump only runs when freeze protecter kicks it on, which has been quite a bit lately