Aluminum Pool Coping Pitting

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mrwunderful
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Posts: 2
Joined: Fri 12 Apr, 2019 06:20
My Pool: My pool is an in ground Grecian style measuring 16.5' by 33.5. It has a vinyl liner with galvanized steel walls and bullnose aluminum coping. The pool is 3' deep at the shallow end and 8' deep at the hopper end. The steps are situated at one corner of the pool. It uses a Hayward pump with a diatamaceous earth filter and an automatic chlorinator that uses 3" chlorine tablets.
I installed the pool in 1985 and have replace the liner 3 times.

Aluminum Pool Coping Pitting

Postby mrwunderful » Fri 12 Apr, 2019 06:36

The aluminum pool coping has several pits and holes in it . I can only assume that it is a chemical reaction to the concrete apron poured around the pool. It is mainly on the south side of the pool. It is still functional in supporting the vinyl liner but it looks bad and seems to be getting worse. The pool is about 34 years old.


Teapot
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 697
Joined: Tue 17 Oct, 2017 10:52
My Pool: 12 x 24 (45m3) liner pool, Triton TR60 filter with AFM glass media (Activate) and variable speed pump running 0.08HP
Location: UK

Re: Aluminum Pool Coping Pitting

Postby Teapot » Fri 12 Apr, 2019 07:44

Chlorinated water will also attack aluminium. Maybe you could repair the pitting or get them anodised to resist corrosion a bit better.

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