New Salt System, algae is recurring regularly

[CarlD]

Yeah, theoretically SWCGs are neutral. Theoretically. And I guess the theory works for me. But far too many of our members have experienced a rising pH from SWCGs to discount their experience. In fact, so many have had it happen it is the norm, and my non-rising pH is not the norm.

Just remember if your feet are getting frostbite and your hair is on fire, on average you're comfortable.

[kelemvor]

My swcg definitely increases pH as it operates. Regular doses of muriatic are on the menu in my pool. I presumed it was due to the bubbles and therefore co2 out-gassing that occurs when the swcg is in operation. My cell gave up the ghost this year and I ran the pool without the swcg. pH was stable the whole time.

http://www.poolforum.com/pf2/showthr...-in-SWCG-pools there's a post that talks about the phenomenon. I'm pretty sure I've seen chem geek write in detail about the process - but I can't find the thread right now.

[CarlD]

Your SWCG bubbles? How's that work? Doesn't it just feed into the return?
(Of course I understand that IF it bubbles, it's aerating and raising pH)

[kelemvor]

Your SWCG bubbles? How's that work? Doesn't it just feed into the return?
(Of course I understand that IF it bubbles, it's aerating and raising pH)

When the cell is energized, many small bubbles come out of the returns. They're easily visible. If you turn the cell off, no bubbles.

[CarlD]

When the cell is energized, many small bubbles come out of the returns. They're easily visible. If you turn the cell off, no bubbles.

Mine definitely does NOT do that! There must be some gasfication going on in the process.

[kelemvor]

Here's a little video. After it's been on for 15 minutes or so, there are far more bubbles than you see here. I turned it off so I could show off vs on and realized after taking 15 minutes of video that it would be VERY BORING to watch all of that.

The off/on cycle was to show that the bubbles weren't from a suction side leak.

[CarlD]

I WANNA SEE ALL 15 MINUTES!!!!!

(no, not really )