What type of rocks should I use around in-ground vinyl pool?

Mulch gets in the pool and I'm trying to replace it with rocks. Any pros and cons? Also what type/size do you recommend?

I live in PA and we have high water table around our pool too. Not sure if this would impact it.
 

Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,276
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
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DorsalSpine

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Silver Supporter
Jul 8, 2013
803
Columbus, Ohio
If you intend to walk on them don't use anything pea gravel size or smaller. The rock I used was smooth so no sharp edges but it doesn't pack at all. It makes for a very unsteady walking surface. I finally had to add pavers as stepping stones to make it safe to walk on.
 
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