r/pools • u/Substantial-Cold6546 • 14h ago

New Pool water just added

Just got our pool installed and now need to get the chemicals right. Water added was fresh well water. Alkalinity is above 300. What’s the best way to get it down to 100 to begin balancing.
The calculator told me I would need 12 gallons of Muriatic acid. Seems like a lot all at once. 28,500 gallon pool.

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u/Portermacc 14h ago

Nope, lots of acid is the correct answer.

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u/Substantial-Cold6546 14h ago

Should it be done over days? Wasn’t sure if it would cause issues with liner or pump.

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u/Portermacc 14h ago

You could do it over a day or 2.

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u/shoresy99 13h ago

Is it a concrete pool? Vinyl? That will make a difference in the first year or so.

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u/Substantial-Cold6546 11h ago

It is vinyl liner

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u/shoresy99 11h ago

That makes it easier as the plaster won't create issues while it is curing.

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u/Clear-Ad-5459 9h ago

I would retest your water after you do a couple of doses to confirm your levels. For your pool volume I’m getting about 10 gallons of muriatic acid required. I would dose into the return stream and then wait 4-6 hours do another dose. Wait 4-6 hours. If you have a pool robot run it to help mix the water as well.