Pool Walls Moving

by Caroline
(Toronto, Canada)

We just had a new NBS 16x26 above ground pool installed. I have noticed that at one end when the kids are making a lot of waves in the pool, the wall seems to be moving (including the top portion where the ledge & caps are).

It doesn't seem to happen at any other location in the pool and I did not notice it before today. Is this normal or should I be concerned that the pool is going to collapsed. Any advice would be appreciated.



Hi Caroline. I'm not sure about the pool collapsing, probably not, but it does sound like you have a problem. It might be as simple as loose screws in the pool assembly at or near that area. These could be easily checked before doing anything else.

A more probably cause is the pool being either slightly our of level or slightly our of round in one spot. One high, or low, spot in the pool will cause this type of problem. Oval pools need to be straight down the sides and round at the ends. All four transitions need to be exactly the same. This is the one of the biggest problems most people have with installing an oval pool. The transitions are the rails going from the sides into the round ends and they all have to be the same.

The shape of the pool can be checked visually and the level can be done with a tape measure. Measure from the water to the top rail in many different spots around the pool, your measurements should all be the same.



We all know how rowdy kids can be in the pool. The thing is the wall should flex evenly, not just in one area.