For some unknown reason the Borate levels in my pool will not go down! The levels are currently at 90! For weeks I've been running my pump 24/7 & backwashing 3 times a week. I drain the pool down to the minimum line on the skimmer, fill it back up & let it circulate for 3 days & then do it all over again, but the levels will not drop! The Pool Calculator states I need to drain 31% of the water and refill.
Any thoughts as to why the levels will not go down?
Also is there any danger to people or equipment with it being so high?