I am considering installing a loo on an internal wall which means a pipe run
of approx 10ft to reach the outside wall.
Is the flush enough of a push to move the pipes` contents out to the end of
the pipe to drop down the vertical part to the sewer?
If not would putting the loo on a plinth assist and what sort of height
would be involved.(False floor i suppose)
The normal minimum acceptable fall is 1 in 60 - a couple of inches in 10
ft. So it should be a problem. There is always the option of a small
bore system with macerator.
Modifications to the sewers requires building consent from your local
authority. I suggest that you talk over your plans with them - unlike
the planning people, I have found them to be extra-ordinary helpful. YMMV.
IA also NA plumber/builder/etc
AIUI the fall should be 2deg. On most spirit levels there are two pairs of
marks on the bubble, one pair is obviously horizontal, the other is to give
you the correct fall.
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