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    Best bolts for use underwater in fresh water pool.

    We are going to put a handrail in our pool that will stretch from the deck to the bottom of the pool or to the bottom step, running over the steps. We are going to install a saftron rail, and the deck to deck ones don't reach out far enough. What bolts are best to use on the part that will be...
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    Help. Are these black spots black algae or metal stains?

    I had a pool construction and renovation company guy come out today. He took one look at it and said many of the stains are probably rebar stains. It makes sense. They responded to nothing. He is going to give me a quote for a replaster and also a repair of a crack in the cement pool deck...
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    Help. Are these black spots black algae or metal stains?

    I did find a pool construction company to come down and take a look.
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    Help. Are these black spots black algae or metal stains?

    Here are photos taken today before and after I scrubbed the area including and around the middle 2 tiles with a vitamin c tablet. The lower photo was taken before the vitamin c. I would also note that these stains are much more prominent on the wall that is never exposed to direct sunlight. My...
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    Help. Are these black spots black algae or metal stains?

    Thanks for your feedback. Unfortunately I can’t find a new water source. My original one dried up due to persistent drought in California, which is why we drilled a well. My pool problems really showed up when I started topping off with well water. I do feel that the pre filter I am using the...
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    Introducing myself.

    24K gal, plaster, Hayward 2.70 THP VS pump, Pentair 60 sq. ft. D.E cartridge style filter, Polaris 280 cleaner, testing in store at Leslies and at home with Taylor DPD basic test kit, Periodic Products FillFast Professional –Metal Remover and Water Pre-Filter System to filter metals from well...
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    Help. Are these black spots black algae or metal stains?

    I don't know where to start. I have black spots that I need help identifying. I live in Hollister, CA. My pool is 24,000 gallons. We had black algae 10 years ago and I got rid of the visible algae with help from Leslie’s. Unfortunately the method they told me to use raised the copper and CYA...