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Reg Rumble

Hot Tub Scale

4 posts in this topic

This is my first post on this board. We have had our old fiberglass tub for several years and after trying every bromine/ clorine product on the market we finally discovered Baqua Spa and have never been hapier (except that we cannot buy it in Canada and have to go to the states once a year for supplies). I have noticed over the past year we are getting a scale build up on the surface of the tub. The last time I drained it I tried to scrub the walls with CLR but it did not remove much. Is there something to add to the water that will gradually remove scale or is the only answer to use a sander :( Thanks for the help and happy tubing

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Fiberglass likes acid. Next time you empty it, try cleaning it with a 10 to 1 Muriatic acid solution and see if the scale weakens or lifts.

HTH

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Also, next time it's empty, try a spot of the shell with your baqua filter cleaner and a rag, think you'll find the answer.

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To help removing scale before draining your spa, try ScaleTec Plus. You should double check that it is okay for plastic/fiberglass shells. It is from McGrayel Corporation, Easy Care Products Division, which is located in Fresno, CA, USA. Their website is www(dot)mcgrayel(dot)com; however, it has had problems every time I’ve checked. I have found this product at a few local pool supply retailers and just today my local Leslie’s. Reportedly it is real good at removing scale with natural chemicals, which are less likely to create other water chemistry problems. Please reply to your post with your solution (especially if you used this product and like/dislike it).

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