using Polyquat

[PoolDoc]

Using the borax will slow your pH rise, once you lower it, but won't actually change the amount of acid it takes to maintain your pH. In other words, with borax added your pool's pH may rise from, say, 7.7 to 7.8 in the time it previously rose from 7.7 to 7.9. But if so, it will take about the same acid to move the pH back to 7.7 from 7.8, that it previously took to move it from 7.9 to 7.7.

Borax is a buffer at the high end of your pool's pH range -- and a buffer is just something that makes your water require more acid to change pH, either UP or DOWN.

So, do as you like. You'll need to add enough borax to get your levels to 50+ ppm to see significant effects, and then add enough acid to compensate. Or, you can just buy 7 - 9 boxes of borax and 3 gallons of acid, and add the borax a couple of boxes at a time, till you get there.

[Poolhouse]

Thanks!