Adding Acid To Vinyl Pool. Even diluted muriatic acid can potentially cause harm. Turn on the pool pump and slowly add the acid and water mixture all the way around the pool s perimeter. The return jets in the pool help with spreading the acid evenly in the water.
If the ph levels are still too high you may add a little more muriatic acid. Even diluted muriatic acid can potentially cause harm.
What follows is to add the mixed acid to the pool water.
Check the ph levels again. Measure the dry chemical pre dissolve in a bucket and pour around the perimeter of the pool never into the skimmer directly. Be aware that because cya is an acid it can cause damage to your filter and to your pool especially if you have a vinyl liner. Even though some cyanuric acid product labels may instruct you to add it by pouring it straight into the pool or filter don t.
