Appears the marcite is thinning

Coheed

Active member
Apr 14, 2018
28
Jacksonville, FL
I had my pool resurfaced in the spring of 2018, after taking the winter cover off and cleaning it up I noticed what appears to be thinning of the marcite. Pool chems updated today prior to posting. Any insight on this would be appreciated.

It is throughout the pool, spa was easiest to get picture of.
pool was full all winter, drained the spa to get photos.

DFEFD627-7226-4C5C-95BB-A36F89E74EC4.jpeg
 

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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
13,216
Northern NJ
No CYA tests for 7 months and no FC for 19 days in your PM log. Can't comment on your water chemistry based on your PM log.

Your plaster looks a bit dirty and stained. I don't see any thinning.
 

Coheed

Active member
Apr 14, 2018
28
Jacksonville, FL
I think your plaster is stained and colored by your water chemistry and the various pool store potions you have been using.

I don't think stain-out has the chemicals to lift copper. And I don't think you read the link I gave you before so here it is again...

Totally agree... been adding junk without knowing it. I see the link, I will try the stuff I ordered and see if it makes a difference. I’ll do some research on copper free ways to control FC and algae.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
13,216
Northern NJ
Totally agree... been adding junk without knowing it. I see the link, I will try the stuff I ordered and see if it makes a difference. I’ll do some research on copper free ways to control FC and algae.
You are not going about this the TFP way. We suggest you only add things to your pool that you know what chemicals they contain and the effect you expect. Pouring a bottle of unknown potion in and seeing what happens is what leads to the problems you now have.

The way to control algae is the proper level of chlorine and CYA. I suggest you read ABCs of Pool Water Chemistry and ...



 

Coheed

Active member
Apr 14, 2018
28
Jacksonville, FL
You are not going about this the TFP way. We suggest you only add things to your pool that you know what chemicals they contain and the effect you expect. Pouring a bottle of unknown potion in and seeing what happens is what leads to the problems you now have.

The way to control algae is the proper level of chlorine and CYA. I suggest you read ABCs of Pool Water Chemistry and ...



So.... gonna knock out this copper stain, use the CULATOR and start using bleach to chlorinate. Balance CYA and FC. I got homework to do to know the way ahead toward a TFP!
 

Coheed

Active member
Apr 14, 2018
28
Jacksonville, FL
In adjusting my FC, I am using Pool store liquid chlorine. The Pool Math app doesn’t have a 10.5%, do I just change the percentage on the bleach and use those measurements?