Preliminary design drawings on the basis of Architectural working drawings.
Preliminary drawings for all floor plans showing water supply and drainage details in single line diagram along with relevant details.
Preliminary drawing for external water supply layout with domestic and fire water supply, with all relevant details including source of water supply, location of under ground water tank, it’s capacity and required pump room with GA drawings for equipment’s for water supply and treatment.
Preliminary drawings of external drainage show pipeline routes with manholes, location of septic tank, soak pit, sewage treatment plant or showing location of final disposal if available from corporation main drain nearby.
Preliminary drawings for external Rainwater disposal showing pipeline routes with manholes, showing location for rain water Recharging / harvesting pits, bore etc. or final disposal if available from corporation main drain nearby.