Activities Duration (Days) Finish drainage under house 3 Finish brick work below d.p.c. 1 Finish electrical main laying under the house 2 Complete drains 3 Complete external main laying 2 Laying external pavement 2 Install internal services 4 Fill with sand 1 Draw an AoN network for the above situation, inserting all relevant information on the network and appropriately marking the critical path.
EN 13598-1:2003 Plastic piping systems for non-pressure underground drainage and sewerage. Unplasticised poly (vinyl chloride) (uPVC), polypropylene (PP) and polyethylene (PE). Part 1: Specifications for ancillary fittings including shallow inspection chambers.