Putting in a second floor bathroom. The drain run to soil stack for the toilet goes as follows:

Horizontal (east) - 6'
Vertical drop - 8'
Horizontal (west) - 28'

My question - for a run like this, do I need to be concerned about what type of toilet I install? Would I avoid ones that flush with low amounts of water? Would it be recommended to get the pressure-assist type? Maybe there is no need for concern at all, maybe this wouldn't even be considered an especially long run, but I thought it worth asking. Thanks!

Hi Lee...

No need to be concerned here as all toilets use only 1.6 gallons per flush as required by law.

The distance you mention is also not a concern as all of us can tell you stories about 100 and even 200 foot runs of sewer lines and they have no issues... as long as the pipes are pitched roperly!

I'd recommend TOTO, KOHLER, or AMERICAN STANDARD toilets... all are very good and should work well for you!

Mark

Thanks, good to know. Glad to hear about 100-200' runs!

Related to pitch I do have another question (surprise surprise.. )

If you remember the layout we talked about, there are 2 pipes that run across the basement ceiling (2" sink drain and 3" toilet/shower drain). Half of this span (14') is in the joist bays above a part of the basement with a finished drywall ceiling. The other half is unfinished with exposed joists - no drywall.

For the run above the finished part I was able to push the 2" pipe through the ceiling (have not tried the 3" pipe yet). This was not too difficult to do even though there is a few inches of insulation in the bays. I elevated the pipe enough on one end to allow 0.25/12" slope. However - there is no support in the middle of the span, I just know that one end is elevated a certain amount above the other end. Should I be worried about sagging in the middle? I rolled a marble down, it sounded like it rolled at a steady pace. What would be done in a professional setting? Cut out 2 holes in the ceiling to install support every 4'? Cut out one hole in the middle to allow support every 8'? Wait to see if there's a problem?

Toilets can not use more than 1.6 gpf but many high efficient one use much less, in the 1.28 gpf ballpark

Pipe needs to be hung... cut out a hole or two and support.

Will do - thanks.

My contractor says I need more "powerful" high "maintenance" toilet for my bathrooms on the 2nd floor. What is a high a maintenance toilet? Any brand/model you would recommend? Thanks

Did he say why you needed such a toilet instead of a 1,6 regular toilet? Are you sure he didn't mean " high efficient> toilet? Bye the way, Just what is a " high "maintenance" toilet anyhow? Back to you, Tom