On 3/19/2011 9:01 AM, zzzzzzzzzz wrote:

New homes are designed to be one-flush with low-flow toilets. 3" waste lines
and rat's nest plumbing are no longer used. OTOH, retrofitting a low-flow
toilet into an older home can be a problem. We don't have a problems (well,
not much[*]) with our new home, either, but I know a lot of people with older
homes that do.

[*] They don't seem to stay as clean as the older toilets.

My house was built in 1973. I have replaced two of its three toilets
with low flow toilets. The new ones work better than the old high flow
toilet.

The only problem that I had was that some idiot plumber could not mount
the flange at the proper height or level to the floor. My guess is that
the plumbing that is below the floor is probably even worse.

I used a basic Kohler model toilet.

http://www.homedepot.com/Bath-Toilet...atalogId=10053


Dan