What is this stuff growing in my grout??
- Thread starter 3asyB
- Start date
Ok. Is it a water chemistry issue?
How do I remove. I really only see it in this area where the spa spills over to the pool
Also I can see where the waterline is leaving a white line in the spa on the waterline tile, not visible in the pool.
My most recent full test results. Thanks for the help TFP.
How do I remove. I really only see it in this area where the spa spills over to the pool
Also I can see where the waterline is leaving a white line in the spa on the waterline tile, not visible in the pool.
My most recent full test results. Thanks for the help TFP.
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No, it is water migrating from behind your stone out onto the grout where it evaporates and leaves that white deposit (mostly calcium).
It can be removed with a solution of water and muriatic acid. It can be cured ONLY if you remove the path for the water to migrate by installing drainage behind the wall
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