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+-- Thread: Slope for underground solid PVC waste (/showthread.php?tid=7341031)
Slope for underground solid PVC waste - wannabedivin - 07-16-2018
I am replacing the clogged corrugated waste pipes from the gutter down spouts. I know there needs to be a slope (1/4 per foot). herein is my problem. The pipe initially goes straight down, then needs to make a 90 degree turn. How does one get to a proper slope when the first connection is 90 degrees? I am using a Wye with a cleanout and really do not want it tilted. The first horizontal leg is about 5 feet before it changes direction.
RE: Slope for underground solid PVC waste - blackhat - 07-16-2018
Normally there is enough deflection in the fitting/pipe connection to allow you to establish grade.
RE: Slope for underground solid PVC waste - crokett™ - 07-16-2018
(07-16-2018, 02:00 PM)blackhat Wrote: Normally there is enough deflection in the fitting/pipe connection to allow you to establish grade.
This. Dig out behind the pipe that goes straight down so it can deflect slightly in the direction it needs to go. Hook up the new pipe, establish grade and backfill that, then backfill around the vertical piece. the horizontal run will also deflect some.
RE: Slope for underground solid PVC waste - Roly - 07-16-2018
(07-16-2018, 02:00 PM)blackhat Wrote: Normally there is enough deflection in the fitting/pipe connection to allow you to establish grade.
Agreed ,1/4" per foot slope is just a little over 1 degree . Should not be a issue. Roly
RE: Slope for underground solid PVC waste - wannabedivin - 07-16-2018
Thanks all. I tend to over think things.
RE: Slope for underground solid PVC waste - fixtureman - 07-16-2018
If they are from the gutter downspouts they really don't need much slope
RE: Slope for underground solid PVC waste - cams2705 - 07-16-2018
(07-16-2018, 01:25 PM)wannabedivin Wrote: I am replacing the clogged corrugated waste pipes from the gutter down spouts. I know there needs to be a slope (1/4 per foot). herein is my problem. The pipe initially goes straight down, then needs to make a 90 degree turn. How does one get to a proper slope when the first connection is 90 degrees? I am using a Wye with a cleanout and really do not want it tilted. The first horizontal leg is about 5 feet before it changes direction.
The landscaper I used had the one younger kid put his foot on the end of the PVC pipe where it daylighted at the end of the trench while he used the small tractor to backfill. I PVC was flexible enough to give provide the required slope.