What is this stuff my vacuum keeps sucking up?
- Thread starter mattamatt
- Start date
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Pour some muriatic acid on it and see if it bubbles.
If it bubbles it is calcium and probably from your plaster.
If it bubbles it is calcium and probably from your plaster.
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
I just bought the house last fall but I have the pool plans from when it was constructed in 2001. I don't know if/when it was replastered since
According to the plans, gunite
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Gunite is the concrete shell. Then there are many different types of plaster finishes from different manufacturers that waterproof the shell.
I think you are seeing old plaster get worn away.
What is your water chemistry and CSI from your TF-100 test kit?
I think you are seeing old plaster get worn away.
What is your water chemistry and CSI from your TF-100 test kit?
Oh I don't know then. How can I find out?
pH was ~7.6 a few weeks ago. I've since raised the FC to 12 which makes the pH test inaccurate to my understanding?
CYA: 30
CH: 75 (I'm reading this might be the culprit?)
CC: .5
TA: 90
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Are you using PoolMath?
Use it to calculate your CSI.
What is your water temperature?
Yes, you need to raise your calcium to around 350ppm asap.
www.troublefreepool.com
Use it to calculate your CSI.
What is your water temperature?
Yes, you need to raise your calcium to around 350ppm asap.
Recommended Pool Chemicals
Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.
www.troublefreepool.com
Temp is about 50 since it's still chilly here. According to poolmath my CSI is -0.98
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
CSI below -0.6 can cause etching of the plaster. If you play what if with Pool Math and see how your CSI increases with adding calcium you will get and idea of where to raise the CH to get your CSI into -0.3 or above. CSI will also rise as your water temperature rises.
- Jul 21, 2013
- 54,058
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
You are in Queens?
I am surprised your water temperature is only about 50. My pool is up to 64 across the Hudson from you.
I am surprised your water temperature is only about 50. My pool is up to 64 across the Hudson from you.
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