"Concrete lifting" - good idea or not?

[singerteacher]

The concrete apron around our 20+year-old in-ground pool has sunk considerably, with one portion 2" below the other portion. The coping is fine, however, but it's causing falls and stubbed toes and has us worried about long-term issues.

Enter "concrete lifting." A company nearby drills holes in the concrete, then injects a mixture of sand and cement into the holes, and levels out the concrete pieces that way. They then patch with cement. I've seen their work on sidewalks and it looks very good.

Any thoughts from pool build experts about this? The pieces needing lifting are not directly above any skimmers or returns, but I'm a little worried about the coping and plumbing. I've attached a pic of the sunken pieces.

 

[Jimrahbe]

st,

I think "mud jacking" would work fine. But I would have them come by to give you an estimate, and ask them directly if they can lift the back end of the concrete while leaving the pool side stable.

Thanks,

Jim R.

 

[JohnT]

I'd be a bit worried that the pressure would push in on the pool wall as well as lift the deck. Like Jim said, I'd want the lifting done away from the coping.

 

[ZcottD]

We had a few sections that sunk as well, we had them cut out and new concrete poured. Only problem now is that the new slabs are too clean. lol

 

[jasong]

Look into the foam lift option. They inject badically spray foam to lift the slab and fill the gaps. I have had both done in commercial applications and the foam seems to work better.

 

[singerteacher]

Thanks everyone!

 

[AftonJeeper]

The people that have done it around here have not been happy with the results long term. The slabs settle back down over time. It's best to have it ripped out and a proper base installed.

Plummer concrete out of Ellsworth is a great company. They did several jobs for me when I was a general contractor.