Still Just Me. wrote:

On Mon, 06 Jul 2009 01:13:57 GMT, anonymous
wrote:

House built 1949. Wall hung urinal install 15-20 years ago by myself.
Two problems need fixing:

1 Urinal pipe seems to clog which I undersand is from a buildup of
something in the urine.

2 Sink downpipe is leaking badly so need to change that.

Both urinal and sink run separately into what I recall is a 3 or 4 inch
cast iron downpipe at different directions but at the same level on the
down pipe. Both urinal and sink have separate piping and traps and
screw into separate female openings on the cast iron downpipe.

The sink is an easy fix, just new fittings in black plastic piping.

Urinal I thought because of the potential for problems is to have a
horizontal takeout piece of plastic pipe I can unscrew at both ends so I
can easily clean it out and monitor any buildup if necessary. I suppose
ideally the urinal pipe should be running downhill to the cast iron pipe
but that is not possible so I had to go with a section from urinal to
wall of a horizonatal piece of pipe 6 to 8 inches long. But having said
that, commercially installed urinals appear no different and have a
horizontal distance to travel before leading downhill!

If you any feedback thoughts for improvement, it would be much
appreciated. Thanks.

I know that all urinal pipes are prone to problems with buildup after
many years.

More important question: You have a urinal in your house?

Yeah, no floor mess. No toilet seat problem. It serves its purpose
well.