| 摘要 |
PURPOSE: A gray water purification system is provided to stably supply processed water by preventing the system from freezing and bursting. CONSTITUTION: A gray water purification system comprises a pump(100), a storage tank(200), a primary filter(300), a secondary filter(400), and a tertiary filter(500). The pump transfers water purified from a purification pump to the uppermost layer of a building. The storage tank is installed in the uppermost layer of the building and stores the transferred water. The primary filter is installed in a water pipe between the pump and the storage tank and removes impurities from the water. The secondary filter removes impurities from the water passing through the first filter. The tertiary filter removes impurities from the water passing through the secondary filter. |
