[QUOTE=DOCDRS;111205]Doc, I agree with you. If the platform was 4" thick and was made of foam (so it's super buoyant), then yes, the water would support it's weight and some of the weight of the people standing on it. But I believe that the swim platforms don't float so the water only reduces it's weight by a small amount. And anyone on the platform, only the part of them that is underwater is being partially supported by the water.
So in conclusion, being on the water only marginally increases it's weight holding capacity.
Al
2006 Mobius LSV