PVC Pipe???

  • We are currently upgrading MFK. thanks! -neo
piranhalova666;5076034; said:
too short of a piece. its less dense than the water....you'll probably need like a 3 ft. piece for it to sink


It is less dense which is why it's floating, but I must be missing something. Why would a larger piece of something of the same density sink rather than float? That doesn't make any sense.

Regular white PVC should sink though. You sure its not CPVC? Is it an off white color? That may float, but I'm not sure.
 
If it because it is cellular core, probably.

PVC pipe and fittings come in either pressure-rated or DWV (Drain-Waste-Vent) varieties.

Pressure rated pipe and all fittings are made from solid PVC and will sink, regardless of size. DWV pipe usually has a "cellular core" of foamed plastic between layers of solid PVC (or ABS). Cellular core pipe floats, solid PVC sinks.
 
ABS pipe floats but PVC should sink. Strange.
 
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