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    Solar panel pump run only 12h in case of slam

    Hi, i have solar panel pump and if i want to slam the pool ,the pump have to run for 24h , but mine of course works only 12hours a day if is full sun (costarica) and just 8 h when is cloudy ....i'm worry the slam won't work well couse the short time the pump run ...any tip ?
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    CYA level increasing to 100 without add any ,why ?

    I have a new pool in costarica , i raised the CYA levels from 0 to 30 adding CYA ,only once at the beginning ,now after 5 months CYA level increased till 100 ...but i didn't put any more in the pool ...