Excess gunite

[Brant]

I have a question about excess gunite removal from a pool floor. I know the floor was shot with at least 2 to 4 inch of too much gunite over part of the floor. The floor is in excess of 14 to 16 inches. It was supposed to be around 10 to 12 inches.

What can be done to remove the excess gunite? What is the process/procedure that is best? Any advice is appreciated!

 

[tommelton]

Have you checked what will be your water depth post gunite shoot? Perhaps it was done on purpose to meet the depth requirements. If there was an overdig - the pool floor is often thicker than originally planned. As long as depth is appropriate - thicker is much much better than to thin.

-Tom

 

[Brant]

Have you checked what will be your water depth post gunite shoot? Perhaps it was done on purpose to meet the depth requirements. If there was an overdig - the pool floor is often thicker than originally planned. As long as depth is appropriate - thicker is much much better than to thin.

-Tom

It's too thick. Water depth is off by 4 inches or more in places. It's also obvious as my floor drain is below gunite in the deep end. They messed up.

 

[AQUA~HOLICS]

It can be removed by using air chisels with wide blades, this has to be done in multiple layers in order to not over cut/remove too much product.
Having the proper equipment that can advise the depth/location of the rebar cage is needed in order to maintain the minimum thickness of Shotcrete for strength.

 

[Brant]

It also has a double mat rebar across the entire floor. It was built overkill so I'm not concerned with rebar other than exposing it but it's not possible unless we removed over 6 inches.

I was curious if it would make sense to cut the floor in a pattern with a concrete saw with a guard to set to a predetermined depth. Then chipping the areas out. I figure doing this might help ensure the depth that is being removed is controlled. I think it would also help to ensure where the concrete breaks as this would create controlled joints.

Thoughts?

 

[tommelton]

I was curious if it would make sense to cut the floor in a pattern with a concrete saw with a guard to set to a predetermined depth. Then chipping the areas out. I figure doing this might help ensure the depth that is being removed is controlled. I think it would also help to ensure where the concrete breaks as this would create controlled joints.

Thoughts?

To me - that is an excellent idea.

-Tom

 

[AQUA~HOLICS]

Yes, set the blade depth to achieve the proper water depth when finished.

 

[tommelton]

And don't forget to account for plaster thickness.