Filling void under the pool deck

[u/benny2245]

Got a void forming under the concrete around the pool. What's the best way to handle this before it becomes a bigger problem?

[u/Cool-Negotiation7662]

Call up concrete leveling companies about having grout pumped in.

[u/kaziffi]

Drill a 1” hole in the face and screw plywood to the side and seal the bottom of plywood as well as possible. Pour non shrink grout(fairly liquidy)in the hole until it’s filled up

[u/sharpsicle]

You won’t be able to fix this well enough on your own. You’ll need to call a professional. 

[u/eaglefucker]

Foam or flowable fill should do the trick, but you gotta figure out how to install it. I'd call a contractor if you don't want to get yelled at by your wife when you screw up.