- Feb 10, 2021
- 22
- Pool Size
- 2400
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-3)
I have a 1 year old pool - Total DIY (Check out that thread here: Texas Dip Pool Build - DIY)
The past few weeks I have noticed that my plaster is not as white as it used to be. In fact I feel like there is some sort of staining/algae/scale problem. Because all of your pool wizards out there cant work without information, ill do my best to present some data here. Im new but ill do my best and get any other info you ask for that I can.
Pool Size: 2400 Gal
Plaster Type: SGM Durazzo Arctic White aggregate plaster finish
Here is a photo - the best I could get today. It LOOKS from the photo like the issue areas are lighter/white but in reality that is what it usually looks like and most of the plaster is currently looking a little yellow-ish.
What I have tried:
-I have brushed (hard) about 10 times in the last week. Nothing really comes off.
-Due to my Sense & Dispense, my PH stays very stable, pretty close to 7.5, and occasionally dips down below 7 for a few Horus if it pumps a little too much acid in, but rarely goes above 7.8 (not sure I have seen/tested it above 7.8 once this summer).
-At one point my TA was low (about 40) but that lasted only about 1-2 days.
-Based on a handful of forums, I tried the vitamin C trick, let it sit on there for a while (5 min) and then brushed it away, no change
I am not sure what else to try. I cant quite figure out what it even is. It doesn't brush off, and high chlorine doesn't seem to do much (I spent a week with FC at about 9.5, then brought it down to 0 and back up to 7 and it has been around 7-8 for the past 2 weeks. --- The high FC is due to me attempting to understand the ORP sensor/control---- I KNOW, I KNOW... Ditch the ORP. I just want to TRY before I ditch it!
Anyone have any thoughts on what to try next?
The past few weeks I have noticed that my plaster is not as white as it used to be. In fact I feel like there is some sort of staining/algae/scale problem. Because all of your pool wizards out there cant work without information, ill do my best to present some data here. Im new but ill do my best and get any other info you ask for that I can.
Pool Size: 2400 Gal
Plaster Type: SGM Durazzo Arctic White aggregate plaster finish
| FC: | 8 |
| TC: | 8.5 |
| PH: | 7.5 |
| TA: | 80 |
| CH | 300 |
| CYA | 42 |
| Iron | 0 |
| Copper | 0.1 ppm |
| Phosphates | 880 ppb |
| Salt | 2650 |
Here is a photo - the best I could get today. It LOOKS from the photo like the issue areas are lighter/white but in reality that is what it usually looks like and most of the plaster is currently looking a little yellow-ish.
What I have tried:
-I have brushed (hard) about 10 times in the last week. Nothing really comes off.
-Due to my Sense & Dispense, my PH stays very stable, pretty close to 7.5, and occasionally dips down below 7 for a few Horus if it pumps a little too much acid in, but rarely goes above 7.8 (not sure I have seen/tested it above 7.8 once this summer).
-At one point my TA was low (about 40) but that lasted only about 1-2 days.
-Based on a handful of forums, I tried the vitamin C trick, let it sit on there for a while (5 min) and then brushed it away, no change
I am not sure what else to try. I cant quite figure out what it even is. It doesn't brush off, and high chlorine doesn't seem to do much (I spent a week with FC at about 9.5, then brought it down to 0 and back up to 7 and it has been around 7-8 for the past 2 weeks. --- The high FC is due to me attempting to understand the ORP sensor/control---- I KNOW, I KNOW... Ditch the ORP. I just want to TRY before I ditch it!
Anyone have any thoughts on what to try next?
