EWC 'P' Water Closet:

NORMAL WATER CLOSET WASTES MINIMUM 4.7 LITERS OF WATER EACH TIME EACH FLUSHNORMAL WATER CLOSET USES 6-8 LITERS OF WATER ON EVERY USE, FOR : 1. To flush the waste out :   The structure and material of conventional urinal allows waste to stay inside the closet body, making it unhygienic. To remove this leftover, water is required in large quantity to force the waste through the P TRAP.