Ideal slop for drainage in restaurant to drain waste water from sink &other equipment's 1:?

An Aerobic Wastewater Treatment System will be located about 125 meters (410 Ft) away and about 50 meters (165 Ft) down, from where the residence is located. That would result, if straight forward connected, in a drainage slope of about 22°. Any problems with such a connection? (Speed at the...

I am getting ready to build a Patio and Landscape my yard. What is the proper slope for drainage (per foot). Second part of same question. My neighbor's yard is higher than mine and I also need to slope mine more away from my house. Will I need to put in a retaining wall to prevent the water...

After a few rainfalls, I realised that water seeps into my aluminium clad garage from concrete paths on 3 sides and from a slight bank on one side. I've put drain-coil into the bank and dug a trench to below ground level on that side but the trench still tends to fill up. This side gets run-off...

Hello, I have been using mathcad for a only a few weeks, so my knowledge of it is limited. I have a set of data points which I have created some polynomial and cubic splines on a graph. What I want to do is calculate the slopes and change in slope of the curves. Any help on a mathcad...