However, this system provides a chance for waste water recycling. Therefore, it is suitable for areas where the water supply is restricted. In addition, this system can reduce the chance of cross contamination between the soil portion and waste portion. The purpose of the sanitary drainage system is to remove effluent discharged from plumbing fixtures and other equipment. The first approach involves brute force. With a solid footing, the cast wastewater soil pipes will break with enough force from a lump hammer - there will generally be little resistance from any fixings, so they'll pry out of the wall. Needless to say, staying out of harm's way is paramount, so you shouldn't employ this solution if you're at all uncertain about what you're doing or being confident that everything around you is safe.

With this in mind a solution was created that covers all these points and is environmentally responsible too, and as with the majority of great ideas the solution was the simplest of all. Fixtures are connected to both the water supply system and the drain-waste-vent system. There is really not much to write about fixtures. Hunter, R.B. Methods of estimating loads in plumbing systems. US Department of Commerce, National Bureau of Standards. BMS 1940, 65, 17. [ Google Scholar]Materials used in drainage an vent pipes according US standards. Materials used in drainage an vent pipes according US standards Piping Material A pressure reducing valve (PRV) also known as a pressure regulator is also installed very close to the shut off valve. This allows you adjust the water pressure to your house which is usually best set at between 40 and 70 psi. Note: If your property uses a sewage treatment plant, septic tank, or cesspool instead of a connection to the mains drains, there must be AT LEAST one open vent in the system to prevent a dangerous build-up of gasses. Solving pressure build-up with an Air Admittance Valve

Vent Terminal - fits over the exposed end of the soil vent pipe to prevent large debris, birds, and other small wildlife from entering the system. Gormley, M.; Aspray, T.J.; Kelly, D.A. COVID-19: Mitigating transmission via wastewater plumbing systems. Lancet Glob. Health 2020, 8, e643. [ Google Scholar] [ CrossRef] [ PubMed][ Green Version] Removal of ventilating pipe connection to soil/waste pipe during the course of renovation leads to direct foul smell spread from the drainage system. Drainage works should be carried out in accordance with building regulations and relevant practice notes The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. ReferencesCheng, L.Y.; Oliveira, L.H.; Favero, E.H. Analysis of building drainage system using particle-based numerical simulation. In Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing. (CC2013), Paper, Cagliari, Italy, 3–6 September 2013; Volume 222, pp. 3–6. [ Google Scholar]