Do Acid Feeders exist for salt water pools

[JimK]

They exist, but as you noticed are a little pricey. Not to mention if you have one and it fails and brings the pH too low, it could seriously damage your pool. There are some other options; watermom has written up a detailed post on some ways to minimize pH rise in swcg pools: http://www.poolforum.com/pf2/showthr...-in-SWCG-pools.........

I pretty much folllow that advice, except my TA has been 90-100 and my borates at about 60. My pool seems to have stabilized at about 7.6 and I haven't had to add acid since the middle of June.

[mnittler]

In that case then it probably won't be a big deal. I had thought that Acid needed to be added every day.

[kelemvor]

I end up needing a dose about every two or three weeks.

[JimK]

I end up needing a dose about every two or three weeks.

I use to add acid when the pH hit 7.6. At that time I was adding acid every week. Following the advice here about TA/borates and not worrying about adjusting until pH rose above 7.8 made a big difference as I noted above.

[waterbear]

The other part of the pH puzzle is to maintain the CYA at the manufacturer's recommended maximum (usually 80 or 100 ppm) and adjust cell output to maintain the FC at 5% of the CYA (or slightly higher for high usage pools or pools without 50 ppm borate). The explanation is somewhat complicated but this will also indirectly slow the pH rise and increase the pH stability.

[CarlD]

To cut the Gordian Knot there's a very simple way to steadily add acid to your pool, assuming your CYA isn't too high, or is even low:

Just load a floating chlorine dispenser with Tri-Chlor tabs.

Tri-Chlor is VERY acidic and will lower your pH or fight the raising of it by your SWCG. It's an effective and far cheaper solution. I've come home from vacations with my pH TOO low from the floaters (oops!).

[waterbear]

To cut the Gordian Knot there's a very simple way to steadily add acid to your pool, assuming your CYA isn't too high, or is even low:

Just load a floating chlorine dispenser with Tri-Chlor tabs.

Sort of defeats the purpose of having a SWCG doens't it?

[mnittler]

To cut the Gordian Knot there's a very simple way to steadily add acid to your pool, assuming your CYA isn't too high, or is even low:

Just load a floating chlorine dispenser with Tri-Chlor tabs.

Tri-Chlor is VERY acidic and will lower your pH or fight the raising of it by your SWCG. It's an effective and far cheaper solution. I've come home from vacations with my pH TOO low from the floaters (oops!).

Then do you turn the SWCG off while you are gone? How does the Tri-Chlor react? Too much Chlorine?

[JimK]

In that case then it probably won't be a big deal. I had thought that Acid needed to be added every day.

Thank goodness there's nothing I have to add every day! (Well, technically chlorine, but the SWCG takes care of that )