The gradient I'm dealing with to connect the sanitary sewer lateral to the main is too steep to run a straight pipe. That usually means installing a drop manhole. This is a residential scenario, so I'm envisioning going from the house at 2-3 fps until I get to the spot where I need to drop ~15' and then connecting up to the existing connection at the main. I'm hoping I can do this with a 4" cleanout to grade and not have to install a full on manhole structure. Would anyone like to share their previous experiences? Thank you in advance.
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