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Hi. My travertine waterline tiles have a dark stain above the waterline. I'm having it cleaned by "soda blasting" but want to seal the tile to prevent same in future. To pick the best sealer, I need to know what it is. Some have told me it may be metals, others say algae, some say dirt line...

I have an 11,000 pool and spa and am trying to maintain a FC level of 7 but that is requiring about 90 oz of 8% bleach each day. Does this sound right for my small plaster pool? My current numbers are: FC 7 CC. 0 PH. 7.6 TA 90 CH 290 CYA 60 Temp 90 Thank you. Lynn

:(We are new pool owners and having trouble getting the pump to work after cleaning the filter. It is not pumping water properly. We filled up the cleaner basket with water and it sucked it right out but then nothing else. Can you please tell me what we are doing wrong?

We finished our pool late last year and have been using Pool Math to keep it balanced. But something got away from us recently and we could use some advice I think. The thing I first noticed were bugs swimming in our water last night! Ewe! My research indicates that these are probably water...

Hi all. I live in Friendswood, Texas. I have been lurking for a few months while our pool has been under construction. It is now complete and has been filled for a week now. The PB did the startup this week and the pool is currently using a Fusion chlorinator which uses the trichlor tablets...