Hello. New here. I am consistently having this dust looking stuff at the bottom of my pool after the water settles. I thought it was just our hard water ch(225) I vacuum to wasteland.the.time and it just keeps coming back. We do live next to a gravel road so I’m beginning to wonder if it’s that.? Yesterday morning the pool was crystal votes with nothing on the bottom and then I turns the pump on for about 5 hours and went out and checked and there was dust all over the floor of the pool. I’m so confused and tired of vacuuming to waste loosing a lot of water. Please help?
Dust/calcium at bottom of pool
- Thread starter mandacain89
- Start date
BowserB
Silver Supporter
- Jul 29, 2018
- 785
- Pool Size
- 15000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Get a test kit like the TFP100 or Taylor. Do an overnight chlorine loss test to be sure that dust is dust and not algae. If dust, then you can deal with it.
I do have that test. I tested last night before I added bleach and it was 1.5fc but I’d didnt test after I added last night. This morning it was 3.5fc
BowserB
Silver Supporter
- Jul 29, 2018
- 785
- Pool Size
- 15000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I'm sure you see what's wrong with your OCLT, but just a reminder. If you add chlorine in the evening, you need to be sure it's thoroughly mixed before testing. Then you need to leave a pump running overnight. Then test in the morning while the pump is still running.
Whether you pass or fail the OCLT (look in Pool School), that is dead algae on your pool floor, That means you have had inadequate chlorine in your pool.
Everything we teach starts with precision testing from a Taylor K-2006C or the TFTestkits TF-100. Ask lots of questions and (I know I am throwing a lot at you) plan on purchasing one of those kits, then we can help you SLAM the pool and get your water crystal clear.
Please read "The "ABC's of Pool Water Chemistry" up in Pool School.
Everything we teach starts with precision testing from a Taylor K-2006C or the TFTestkits TF-100. Ask lots of questions and (I know I am throwing a lot at you) plan on purchasing one of those kits, then we can help you SLAM the pool and get your water crystal clear.
Please read "The "ABC's of Pool Water Chemistry" up in Pool School.
BowserB
Silver Supporter
- Jul 29, 2018
- 785
- Pool Size
- 15000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
OCLT is Overnight Chlorine Loss Test. What you did was flawed, because you don't know what chlorine level was after you added chlorine, you didn't leave the pump running overnight, and you tested without the pump running in the morning. So your samples may or may not represent what the pool is. Like Dave said, read the ABCs.