Molo
Member
I am doing some drainage work, and noticed that the 4" PVC sdr (sewer drain) was fairly flexible, and some was deformed at the yard. Will this collapse under the pressure of 3-4 feet of gravel?
TIA,
Molo
TIA,
Molo
toolaholic said:Question is why did You take that garbage? I always pick, don't have delivered ,[for this reason]
molo said:I am doing some drainage work, and noticed that the 4" PVC sdr (sewer drain) was fairly flexible, and some was deformed at the yard. Will this collapse under the pressure of 3-4 feet of gravel?
TIA,
Molo
Nate R said:RUGGED:
What do you use then? I have some rain gutters that need to go underground into a dry well. Also want to run some drainage pipe on a slope that faces my house to catch and divert water a few inches underground.
RUGGED said:SCH40 PVC.....always 4" once it is outside the building wall. Doesn't matter what or how much is flowing through the drain.....it's always 4".
Never bend/pull plastic piping of any type in the ditch. That becomes a hard spot in the piping over the years and can cause stress at fittings.....with fittings breaking if strained hard enough. I "prefer" the use of 4 banded ferncos underground against SCH40 glued couplings for the sole reason of how unstable the ground might be, especially when the operator overcut the ditch too deep.
You can install tons of fill but there is always settlement.....the rubber fernco allows a little flex, unlike a glued coupling. I'd still use couplings overall, just a fernco where I feel there would be unavoidable movement in the line.
This is awkward, but...
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