Plumbing system is used for water supply in building .It supplies water to kitchen toilet outlets via distribution system of pipes. Drainage system is used to get rid of human wastes through well-arranged network of drainage pipes.
Types of Plumbing Systems in BuildingsPlumbing system in buildings consists of underground tank which is supplied water via municipal or water department supply lines, from there with the help of pumps and piping distribution system water is supplied to overhead tank and thereby due to gravity water reaches to home outlets. The overhead tank can however be eliminated if water is supplied directly from underground tank to kitchen toilet outlets, there comes the need of pumps which can give uninterrupted supply of water with required pressure to outlets so that when one opens the tap he gets continuous supply of water. Such pumps are called hydro-pneumatic system. Such pumps consists of small steel tank with water on one side and air on another separated by a rubber membrane .As the pump starts it supplies water to the wet side thus causing rubber membrane to expand and air compresses on other side thus causing extra pressure on wet side which is connected to water supply line. So as one opens the tap , gets the required quantity of water. This causes the pressure to drop and the pump is automatically switched on again thereby maintaining the pressure of water and at same time supplying the water to outlets .
Pumps are of two types:
- Submersible pumps, and
- Open type Pumps
Submersible Pump System
Types of Drainage Systems in BuildingsDrainage system is of two types: 1. Waste water is from showers, basins, kitchen sinks, washing machines, and the like. This is also called grey water. Normally a minimum of 75 mm dia. pipes are used for drainage of waste water. 2. Soil water or sewage is from WCs and urinals. This is also called black water. Minimum of 100 mm diameter pipes are used for waste water. When run horizontally, soil water pipes should be run at a steeper slope, such as 1:40, as they have solids. These can be of cast iron or of PVC.
An overall view of complete sewage treatment of a complete cityA sewage treatment plant is recommended for the disposal of large amounts of sewage. This is a plant that will process sewage and produce sludge and (relatively) clean water from it. This water may then be used for landscaping, or even perhaps for HVAC cooling towers – not for drinking or washing. Read More: How to Determine Suitable Pipe Sizes for Water Distribution in Buildings? Types of Plumbing Pipes used in Building Construction Types of Pipe Joints in Plumbing System Types of Pipe Fittings in Plumbing System for Different Purposes