6”-8” depression

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
SouthWest Alabama
That looks like it could be a depression caused by an underground cavity from a root etc. that decayed years ago and wasn't found during excavation.

Unfortunately the only way to fix it is to drain the pool and pull back the liner and fill it with good compactable material, and compact it to 90+% proctor density.

It would also be wise to check the entire area for an extension of that hole or for other cavities.


TFP Expert
LifeTime Supporter
Apr 16, 2007
Looks like it may have been over looked when the sand went down. Wasnt packed in that area. That's a pretty big depression n it's going to collect a lot of debris.


May 8, 2020
Madisonville, KY
No sir/ma’am. I haven’t done that yet...but it’s an excellent idea. I need to. I don’t think we’re losing water. But it’s been raining so much this week I’m not sure I’d notice the water loss. Unless it was a large leak.