Sewer layout plan for a residential site development showing the network of collection pits and grease traps. SPA-1 through SPA-14 and SPB series pits are positioned along a coordinate grid for easy site setting-out. Connecting pipework is specified as 150 dia. with drainage slopes indicated for gravity flow. Site infrastructure includes multiple access roads with widths of 5.0m and 6.0m. Manhole (MH), grease trap (GT), and roof drain (RD) locations are marked relative to the building edge and roof parapets. All dimensions are provided in mm following standard plumbing drafting conventions. Coordination with municipal sewer lines is simplified by the clear pit-to-pit dimensioning and defined pipe runs.
Residential sewage pit layout plan with 150mm drainage
