Need repair or patch this but don't know what material

limdoan

Well-known member
Mar 8, 2017
46
La Mesa, CA
Hi,
I'm not sure what material this pool is made of and how to patch this.
Do I need to hire a professional?
Picture attached. I could also have a 15-second video up soon (on yt as unlisted) - let me know.
Thank you!
 

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Where is that? Pool or spa? Wall or floor?

Looks like plaster over gunite. I see a crack running to the upper left. Do how much of the plaster is delaminating? A patch will not hold if the areas around are coming loose. Really looks like you need a replaster job.

There are pool plaster repair materials. None will look pretty and match the colors.

How old is the pool and plaster?
 
This is the pool floor.
I think it's also plaster. I also see small crack now that you mention it.
I don't know the age of the pool, we bought this house 2 years ago.

Would this work?

Thanks.
 
In how deep of an area?

You really need to drain the pool and properly prepare the surface to have it stick. I have tried to do underwater repairs of grout and it is very difficult. Best to put a bonding coat on the gunite then plaster patch.

I have used


@bdavis466 thoughts?
 
Then go around and tap on areas and see how much of the plaster sounds hollow or is loose. Figure out how much area needs repair.

You ever do plastering, tiling or grouting?
 
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