We just had a fiberglass pool installed and the contractor let some concrete harden on the tanning ledge and the bottom of our pool....is there a way to remove the concrete without pool damage and without grinding it down?
Concrete removal from fiberglass Need HELP
- Thread starter dvanwye
- Start date
- Jun 22, 2014
- 48,404
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Welcome to TFP! 
The pool is still empty correct? What has your installer and/or concrete sub said? How much concrete are we talking about, and how long has it been allowed to sit and cure there?
Pool Care Basics
The pool is still empty correct? What has your installer and/or concrete sub said? How much concrete are we talking about, and how long has it been allowed to sit and cure there?Pool Care Basics
No, the pool is filled :-( ...not a lot of concrete a very thin amount on the tanning ledge and some drip over on the sides.Welcome to TFP!
Pool Care Basics
- Jun 22, 2014
- 48,404
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
I had drips along the side from the mortar and grout as well. We gently scarped the bulk product then were able to buff the remaining stuff from the shell. If you (or they) can slowly scrape or pick away at the thicker stuff and get close to the gelcoat, the same technique may apply. You cold also use a fine wet/dry sandpaper if needed.
- Jun 22, 2014
- 48,404
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
But I'm surprised your installer or the concrete sub isn't taking action to make this issue right for you. No word from them at all?
I used a plastic putty knife to scrap off the concrete, following by a stiff brush. It did not scratch the gel coat.
Muratic acid will dissolve concrete if you can lower the pool water enough to expose the concrete you are trying to remove.