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Suggestions to remove Mold or similar on pool tiles

Posted on 4/18/22 at 1:15 pm
Posted by tigers84
Baton Rouge, Louisiana
Member since Jun 2008
2761 posts
Posted on 4/18/22 at 1:15 pm
I have two areas on my pool tiles that have these black mold looking spots. I have sprayed with vinegar and scrubbed and dipped brush in muriatic acid and scrubbed to no avail. Any ideas how I can get this off? Pool is less than 1 year old and looks like it is in the areas where the jets may push some water up a little on these areas. Thanks
This post was edited on 4/18/22 at 6:22 pm
Posted by AmosMosesAndTwins
Lake Charles
Member since Apr 2010
18355 posts
Posted on 4/18/22 at 8:13 pm to
Pressure washer?
Posted by tigers84
Baton Rouge, Louisiana
Member since Jun 2008
2761 posts
Posted on 4/18/22 at 8:15 pm to
Tried pressure washer also, did nothing to it.
Posted by AutoYes_Clown
Baton Rouge, LA
Member since Oct 2012
5301 posts
Posted on 4/18/22 at 8:27 pm to
Chlorine (let dwell) + brush
Posted by baldona
Florida
Member since Feb 2016
22449 posts
Posted on 4/18/22 at 8:57 pm to
quote:

Tried pressure washer also, did nothing to it.


I apologize for being blunt but I don’t believe that you used a decent pressure washer and scrubbed bleach and neither worked on a pool that’s under a year old. Are you sure it’s surface mold then? Normally something like a pressure washer would take that off easily. With it being around a pool I’d ask a pool company so as to not throw off your pool chemicals/ mix them.
Posted by RaginCajunz
Member since Mar 2009
6579 posts
Posted on 4/18/22 at 10:41 pm to
Is it on the surface? Are the tiles absorbing the liquid or delaminating? Hard to tell from the photo.
Posted by tigers84
Baton Rouge, Louisiana
Member since Jun 2008
2761 posts
Posted on 4/19/22 at 7:31 am to
Thanks for this suggestion. Saw where a guy online took a chlorine tablet and rubbed on water line and let sit and then scrubbed off and seemed to work. Gonna give it a go today. Yes, it appears to be a surface stain and I test and adjust chemicals weekly to keep everything in balance.
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