Ouch, we have an in-ground 39' 26000 USG pool with salt system.

Have to add acid once per week to keep pH in range, presumably as salt generator raises the pH.

Normally buy my acid from Home Depot, today price is 25% higher ! ! ! Who says there is no inflation.

Last week's price USD7.96 for box of two 1 gal bottles of 31.45% muriatic acid, today USD9.98+tax ! ! !

Will have to try getting from Lowe's . . .