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I have not done a purge, because I already drained the tub. I see ahhsome makes a shell cleaner. I wonder if I could spray that on and let it sit and then scrub it off.

I have a rotomolded spa with bright yellow staining just above the waterline as can be seen in the picture. I tried Oxy (mixed with a little water to make a paste troweled on and let sit until hard then scrubbed off), boat hull cleaner, vinegar solution with a magic eraser (though I didn't wet...

Thanks, I don't typically worry about CH because I have FG so my calcium is close to 0. Should I try increasing CH before I mess with TA?

Moved from HERE Can gel coat oxidation cause cloudiness? My pool was pretty clear last week but it had a ton of acorns and debris so I ran my dolphin multiple times and you can't see the bottom. If I run my hand along the wall below the waterline I get a chalk residue. I wonder if the rotary...

Thanks. If it is oxidation, is there anything I can do to prevent it? Or does the gel coat need to be replaced?

Okay been doing a SLAM since the 10th. So far I have used 36 gallons of chlorine. I've seen some improvement in clarity but I still cant see the bottom in my deep end clearly and I feel the improvement has leveled off. I've continued to pass OCLT (was passing before I started). I think what...

Interesting. Was you pool water cloudy, but otherwise looked good?

No, but you can see the plates when you look in the end. I checked it earlier this year and so no evidence of any scaling.

Thanks. I need to fix that. That was my estimate, but the swimming pool rep told me it is 18K

The plot thickens. I just checked and FC is 9.5, up from 7 this morning. I don't know what to make of that other than the SWG is working and adding alot of FC to the pool given ho much I likely burned off with the sun out all day. I'm going to bump back up to 24 for a few days and see if it...

Ok. What I'm trying to understand is if there is algae, i.e. chlorine demand, then how can I have no OCLT and no CC. And how does algae explain that the SWG only added 1.5 ppm in 11 hours. My SWG produces 2 lbs per day. In 11 hours it should add 14.6 ounces of chlorine. Which should be 6...

So is it worth trying Phosphate remover? Then what, with the phosphates gone we won't need as much chlorine to kill biologicals and my SWG will be able to maintain a good FC level again?

I read 2500 ppb, so I guess I have high phosphates. I don't have any phosfree but I do have revive which says it clears orthophosphates. Could it hurt anything to throw revive in?

I called discount salt pool, who I bought my SWG from, and he said it sounds like the SWG is working. He suggested that I might have high phosphates in the water which is making it easy for organisms to grow, which my chlorine is instantly killing off. This is creating a high chlorine demand...

Read 5.5 last night and 7 this morning, so the SWG only added 1.5 over 11 hours.

That's a good idea. I'll do that.

0.5 FC loss. And I got out there an hour after sunrise, so I think there was basically none.

I'll do the test, but I did the SLAM for a week after the water was blue and mostly clear with no appreciable improvement and 2 consecutive successful FCLTs. I currently have 0 CCs as well. I have really low calcium (50), but I'm fiberglass so I don't think calcium would cloud the water and in...

The CircuPool doesn't have a clear cell, so I can't tell.

I have a CircuPool Universal 40 SWG. Since installing it, I have run my pumps for 4 hours per day with the SWG set at 40 and I had no problem holding an FC fo around 7. This season, I had lost a bunch of CYA and had to SLAM the pool. Once the pool cleared up, I let the FC drift back down with...

Is it safe for my cleaner to go in while the chlorine is at slam levels?

Weird that I have no CC and my FC is starting to rise. I just added 4 gallons of 10% so we 'll see how it looks tomorrow.

Active20. I ran a cycle and it picked up all the debris I could see. I just added 4 gallons of 10% so we'll see what it looks like tomorrow.

So you think I need to SLAM until clear since I already meet the other criteria? Should I put my cleaner in before or during SLAM to clean up debris from the bottom?

After checking FC this morning, numbers are FC - 5 CC - 0 ph - 7.5 TA - 70 So I gained FC overnight (probably the 2 hours my SWG ran this morning).

A few weeks ago I realized that my water was just starting to turn a little green. I checked chlorine and had practically none. This was despite running my SWG for 4 hours each day as I've always done. I checked my CYA and it was nonexistent. Not much of a surprise with all of the rains we...

A few weeks ago I realized that my water was just starting to turn a little green. I checked chlorine and had practically none. This was despite running my SWG for 4 hours each day as I've always done. I checked my CYA and it was nonexistent. Not much of a surprise with all of the rains we...

Thanks. Rather than install an outlet at the equipment pad and then run an extension cord, I thought it would be smarter to trench the 15 feet to the fence and install an outlet there. It's all done and now I have an outlet poolside to plug in the cleaner or in case someone needs to charge a...

Yeah, the wiring to the subpanel is like 8 gauge, connected to a 30A breaker in the main panel, so I could put a bigger breaker on if you think the cleaner needs it.