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Re: Installing an upstairs toilet |
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| message from BigWallop on 12 May 2004 |
Not really feasible to run solid waste in a horizontal pipe as it gets easily stuck to
the inside edges, so it's best to have as steep a running angle as possible so the
whole pipe flushed after being used.
Does the existing sewer and soil pipe from the downstairs loo run under the house ?
It might be possible to pick up the sewer system again at the other end of the
property if you know where it goes.
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| Christian McArdle replied to BigWallop on 12 May 2004 |
Ah, but there may be wider joists. If the joists were 220mm, for example,
and a 100mm soil pipe, that would give 120mm fall over 2.7m, which is around
1:22, which is, AIUI, the recommended fall. It is approximately 2.5 degrees,
which is why they invented the 92.5 degree T.
Christian.
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| Jonathan Pearson replied to BigWallop on 12 May 2004 |
This is a total misconception, just like your pipes once you get underground
(but can't see) - they are not as steep as possible but at a very gentle
slope!!, their is an optimum slope which is around 1:50 i.e over 5m a 100mm
drop (please check the exact figures in build regs), if you have a steep
angle the water flows too fast and the solids are left high and dry, if the
solids dry out and stick the next flush may not move it, hence you may
eventually get a blockage!, the idea been behind a relatively shallow slope
is that the water moves much more slowly and carries the solids along with
it, the optimum is just before the solids drop out of suspension, hence why
building regs have a slope from something like 1:20 to 1:100, i.e a gentle
slope
Jon
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| BigWallop replied to Jonathan Pearson on 12 May 2004 |
I must select my wording more appropriately.
I must select my wording more appropriately.
I must select my wording more appropriately.
I must select my wording more appropriately.
I must select my wording more appropriately.
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| The Natural Philosopher replied to Jonathan Pearson on 12 May 2004 |
Best soil stack story I ever heard was from the building manager of a 15
story luxury hotel in Africa.
The whole hotel expended enough in the african heat to pop the ( in the
air conditioned cool interior) stack joints on the lower floors.....
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| BigWallop replied to The Natural Philosopher on 12 May 2004 |
EeeeYuckie !!! Sounds like the type of hotel were you write home and say "Wish you
where here and not me". :-))
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| The Natural Philosopher replied to BigWallop on 13 May 2004 |
Actualy not. Upwards of the 10th floor it was extremely nice. I was
there to intall a disco in the very top floor night club...we got free
broiled lobsters and salad all the time.. :-)
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Archived message: Re: Installing an upstairs toilet (UK DIY House Renovation)
