Tons of footprints in new pool


May 22, 2016
HUntington, NY
Had a vinyl pool built this spring. The sides are concrete, the bottom is sand. The builders were, overall, not so reliable. We finally got the chance to use it today for the first time, and my 10 year old niece spent about an hour frolicking in it. The floor has a lot of give under it.

Turned the lights on tonight and the floor looks like a moonscape. Not just a little dent here or there, but dozens and dozens of dents and footprints. This is my first pool, but I've never seen this before.

Does this look at all normal?



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Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
Southern OK
Welcome to TFP Mike :)

I have not heard of an inground vinyl with a sand bottom, most are done with vermiculite (a type of concrete)

What you are seeing happens all the time in an above ground pool with a sand bottom..

Are you sure they just used sand?


TFP Expert
LifeTime Supporter
Jul 21, 2011
Eastern Ohio
Pool Size
Liquid Chlorine
I'd like to first off welcome you to TFP!

Looking back at all the inground vinyl pools I cannot picture a single pool that didn't look like the moon when the lights were turned on. What you are describing is very common. It won't however harm anything besides the looks of the pool.


Mod Squad
LifeTime Supporter
Jul 10, 2012
Tallahassee, FL
My installer sent a LONG time and tried SO hard to get the floor flawless. It looked awesome in the day light. Once night came and the light was on LOL not so much. Nature of the beast and does not affect anything. Those little dips will catch dirt and stuff in the just so you know.

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