Soil pipe gradient
#3
12-04-19, 06:05 AM
And the maximum? I read somewhere that the maximum gradient for soil pipe is 3 inches per foot, is this correct? Isn’t this too steep? Wouldn’t such gradient cause the water to travel fast leaving the soil behind?
#4
12-04-19, 08:08 AM
Group Moderator
There is no maximum, only a minimum slope.
There is an old wives tale that too steep a slope causes solids and liquids to separate and causes clogging but that's totally bogus. It ranks up there with mixing vinegar and baking soda together for cleaning (if you remember high school chemistry they neutralize each other and only makes nasty tasting salt water... but it's good for science fair volcanoes).
There is an old wives tale that too steep a slope causes solids and liquids to separate and causes clogging but that's totally bogus. It ranks up there with mixing vinegar and baking soda together for cleaning (if you remember high school chemistry they neutralize each other and only makes nasty tasting salt water... but it's good for science fair volcanoes).
#5
12-04-19, 09:02 AM
Thanks mate, I appreciate the advice that many ideas are just work as theories but not in practice! I will proceed with 4inch gradient per meter for a 6.5m long soil pipe.
