Phosphates and magic eraser?

mmardini

Well-known member
Jul 21, 2020
133
Palm Springs, ca
Pool Size
15000
Surface
Plaster
Chlorine
Liquid Chlorine
Hey all,
I know TFP methods don’t worry much about phosphates and I don’t either but I have pool water that’s about 2 months old and already have phosphates in the water so I’m wondering where it could have came from. I don’t use any fertilizer around the pool and it hasn’t been windy here so not many leaves or debris in the pool, but I have been using a mr. Clean magic eraser to clean my pool tile about once a week (glass tile, trying to keep the deposits at bay). I’ve also used a diluted solution of dawn dish soap a couple time but that says no phosphates on it. Does anyone know where the phosphates could be coming from or if they are present in the mr. Clean magic erasers? I also had a pool service (just fired this week) that would randomly just throw some unknown chemical in the pool the second he got here which I have no idea what it was.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
22,080
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
I assume you filled your pool from your municipal water supply. Did you test your fill water for phosphates?


Was a metal sequestrant used when your pool was filled?
 
Last edited:

mmardini

Well-known member
Jul 21, 2020
133
Palm Springs, ca
Pool Size
15000
Surface
Plaster
Chlorine
Liquid Chlorine
I assume you filled your pool from your municipal water supply. Did you test your fill water for phosphates?


Was a metal sequestrant used when your pool was filled?
I don’t have a test for phosphates. I first learned that I had them from pool store testing but just figured they were trying to sell me something. Then I hired a new pool maintenance man who actually tests the water with a proper test kit on every visit and he mentioned it as well and was confused since the water is so new. He only works in my area and he said it was unusual.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
34,605
Laughlin, NV
Magic Eraser sponges are made of melamine foam. No phosphates involved.

Phosphates are of no consequence generally and only need to be addressed if in the several thousand ppm range and causing issues (such as calcium phosphate, etc).
 

mmardini

Well-known member
Jul 21, 2020
133
Palm Springs, ca
Pool Size
15000
Surface
Plaster
Chlorine
Liquid Chlorine
Magic Eraser sponges are made of melamine foam. No phosphates involved.

Phosphates are of no consequence generally and only need to be addressed if in the several thousand ppm range and causing issues (such as calcium phosphate, etc).
Thank you for the response. I wasn’t so much worried about the phosphates but wanted to know if the magic erasers were contributing. Nice to know they are not they work well with the tile!