Water and sewerage system for construction, and protection for the same

A water and sewerage system for a construction, comprising a plurality of water consumers;

• at least one water supply pipe adapted to supply water from a water source;
• a plurality of water supplying pipes extending from said water supply pipe to said water consumers;
• at least one water drainage pipe;
• a plurality of water draining pipes extending from said water consumers to said water drainage pipe;
• a water level sensor connected with said water drainage pipe so as to sense when water reaches a predetermined level in said water drainage pipe;
• and at least one water supply interrupting element cooperating with said water supply pipe and connected with said water level sensor so that when water in said water drainage pipe reaches said predetermined level said sensor sends a signal to said water supply interrupting element and said water supply interrupting element interrupts water supply in said water supply pipe.

A water and sewerage system, comprising a plurality of water consumers;

• a water supply pipe adapted to supply water from a water source;
• a plurality of water supplying pipes extending from said water supply pipe to said water consumers;
• at least one water drainage pipe adapted to drain water to a sewage reservoir and the like;
• a plurality of water draining pipes extending from said water consumers to said water drainage pipe;
• a water level sensor cooperating with said water drainage pipe so as to sense when water reaches a predetermined level in said water drainage pipe;
• and at least one water supply interrupting element connected with said water supply pipe and also connected with said water level sensor so that when water in said water drainage pipe reaches said predetermined level said sensor sends a signal to said water supply interrupting element and said water supply interrupting element interrupts water supply in said water supply pipe.