On Aug 18, 11:59*am, Jim Elbrecht wrote:
On Wed, 18 Aug 2010 15:24:05 +0000 (UTC), Jules Richardson

wrote:
On Wed, 18 Aug 2010 11:11:26 -0400, JoeSpareBedroom wrote:
Another potential problem with styrofoam is that is can displace just
enough water to keep the toilet from functioning correctly. If the water
level's already as high as it can be (based on the toilet's internals),
there would be no way to compensate for the lost water volume.

Yes, this one's OK I believe - the level's quite a way below the inlet. I
was planning on putting a housebrick or something in the tank first as a
test just to occupy space and see if everything still worked :-)

Just to add to the negatives on Styrofoam-- * Mine started breaking
down after a few year and beads kept getting caught in the flapper.
After about the 10th time that happened it was a major PITA to get the
rest of it out.

Jim

And as anyone with a hot tub and a cover knows, styrofoam eventually
becomes water logged.