Posted 11/19/2009 19:31 (#930686 - in reply to #930642) Subject: Re: tiling question on grade for mains and laterals
southern MN
If you make the main shallow & the lines steep, the water will run from the wet spots faster, and pool in _any_ shallower-than-average grade of the main, creating a wet spot that is the last to drain.
I'd make the main line the priority grade, if I understand the question right.
tiling question on grade for mains and laterals
