Peter Clark wrote:

On Tue, 17 Jan 2006 13:16:23 GMT, Matt Whiting
wrote:


Actually, this isn't necessarily the case. Larger pipes may help avoid
clogs from very large objects such as diapers, but it may increase the
odds of a clog from the more routine "crap" that waste pipes carry. It
takes a certain depth and velocity of water to move the solid waste
through a nearly horizontal run of pipe. With larger pipes, the depth
and velocity of the water from a typical flush won't move the solid
waste. After a while, a clog will form.

This was first noticed when the move was made to the 1.6 gal water
saving toilets. Older homes with 4" main waste pipes began to suffer
more clogs. Many new homes are now made using 3" waste pipes to
increase the water velocity from the water conserving toilets.


Ya know, you sure know a lot about crap.

Sorry, I just couldn't resist

It always amazes me the bits of trivia one picks up reading these
groups.

I picked this up reading a construction ng... :-)

Crap is their business. :-)

Matt