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After reading the post you listed and the in-bedded link to the Orenda website article, I had what they showed in the photo of the wall and fingers. They call it calcium crystals. The sides of the pool felt like a very, very course sandpaper. The particles were very small, like less than a...

Thanks for the references. So does anyone know if the nodule production will ever stop?

So in April 2021 we had our 26 year old pool re-plastered after a make over the previous Fall (View Picts Here). Several weeks after filling, I converted to Salt and the only issue I had was a constant fight a rising pH. Other than that, everything was fine that summer with the pool. I...

Here in central MD the daytime temps are starting to fall. I'm still getting a solid 6 hours a day but as the sun angle changes, I suspect it's not as strong as it was in July. Except for yesterday's early morning test at 5ppm, I had been in the 7 +/- .5 range for weeks when testing in the...

Thanks for the reply, Pat. I wanted a sanity check for the FC at 7.0 which is slightly higher than recommended. Hoping someone can reply wrt the expected length of time for the pH rise to slow down.

I’m finding it a bit tricky to set up our new RJ-45+, which I installed in June, six weeks after it was re-plastered. Since startup, I’ve been running the VSP for 20 hours a day at 1,350 rpm, which provides 23 gpm of flow and turns over our pool’s water 1.9 times a day. Running the VSP at this...

Thanks, cowboycasey. I was thinking that I could do that. Demo was done last week. Deck will be removed tomorrow.

Hello everyone, I'm kinda closing in a strange manner this year, cleaning the filter before doing anything else, because my pool will be renovated this Fall and next Spring (Pool demo, new coping, tile, pool deck demo and re-pour this fall. Plaster applied in the spring then refill) Pool demo...

Will do. Thanks Marty. Gary

Oh, one more thing. In the spring, I'd bought some phosphate lowering liquid. I know it's not a TFP recommended item but does anyone see any issue if I just use it up to get it out of the chem box?

Ten Days Of SLAM. Finally there! Zero chlorine loss overnight. :party: Started aeration to raise pH back up. Thanks for the help. Gary

It has been a week since my last post and this is what I’ve been doing. I drained lots of water and refilled and I also had to remove some rain water. My pump is on continuously with the speed adjusted for a 1.5 turnover in 24 hours. The water has been completely clear throughout this process...

Thanks very much for the reply, and BTW, the water has been totally clear the past couple weeks.

Here's an update as to what I've done. I drained a significant amount of water and refilled to lower the CYA. Then two nights ago, we got 2.9" of rain so I drained again. I also opened the filter and cleaned off the grids, removing some tree seed debris in the process. Last evening, I gave it...

I'll drain some water this week to get the CYA down to acceptable limits then get balance and do a slam. I'll update everyone next week as to my progress. Thanks for the inputs. Gary

Opps, forgot to state that. Water is absolutely clear. No algae. And wrt a SLAM, how long do I keep the level elevated?

Hello everyone, I’ve owned my plaster pool for 26 years now and this has been my worst season ever getting things set correctly. I live in Maryland and uncovered in mid-May, late for us as it was rainy and cold. I heat with a solar cover so I need good sunny days but the pool only gets about...