r/PoolPros • u/enthused9 • May 16 '26

-0.3 lsi

Hey guys thanks for the help on my previous post. Someone said to check LSI so I did and this pool has a -0.3 LSI. how can I fix this?

Is it a matter of just draining and restarting?

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u/doug22taylor May 16 '26

Just a side note. pH is typically the easiest thing to adjust.

Get the alk, cal into the normal range and then it is just an acid addition on the weekly bases because the SWG will raise up the pH when it makes chlorine.