Hi Jrv331,

I just answered this question in another thread.

http://www.poolforum.com/pf2/showthr...?t=7397&page=2

I've seen a plastic skimmer cap crack when someone stepped on it on an above ground pool deck. Granted, it was an old, weathered lid but they were fortunate their foot didn't go all the way through, cut themselves or possibly break a leg.