When the flood season water storage pool receives water, the water level in the rainwater storage area rises to a certain height, triggering the vacuum system automatically. As the air in the flushing chamber is gradually extracted by the vacuum system, a negative pressure state is formed, maintaining a constant storage of water level and volume in the flushing chamber.
Subsurface Residential Wastewater Treatment System Application Range
1. Hotels, restaurants,
2. Residential communities, villages, towns
3. Train stations, airports, seaport terminals, vessels
4. factories, mines, tourist attractions, scenic spots
5. Various industrial wastewater similar to domestic sewage.
Features:
◆Even with light rainfall, it can still perform the flushing function.
◆Also available in designs with external water supply for flushing as needed.
The system's usage is not restricted to the geometric shape of the storage room.
Low power consumption.
◆Automated operation; the system can also be upgraded for remote control.
The pond is free of equipment requiring maintenance, providing an excellent work environment and health.
Low maintenance (only requires regular oil changes).

Vacuum Negative Pressure System
The power unit of the vacuum flushing system consists of a complete set of equipment, including a single-stage scroll vacuum pump, vacuum valves, vacuum gauges, an intelligent control box, a vacuum vessel, and corresponding pipeline valves. It can be started and stopped manually or automatically. Optional single/dual pump alternating operation mode.

Features:
◆ No submerged facilities or components; maintenance requires entry into the reservoir.
◆Single extra water supply, utilizing stored rainwater (or mixed wastewater) for flushing.
◆High cleaning efficiency (with a head energy of up to 7 meters).
◆ Even in long or gently sloping channels, it offers superior flushing effects.
The Myuan-VFS Vacuum Flush System, with the assistance of a vacuum system and a control valve assembly, is capable of absorbing a sufficient amount of water and maintaining it at a certain height. This generates adequate potential energy. After the water tank is emptied, the water in the sediment room is released, converting the water's potential energy into kinetic energy, creating a powerful flushing water jet. This jet carries the remaining sediment in the tank to the collection pit and discharges it to the wastewater treatment plant.
Automatic Diaphragm Device
Made of SUS304, it includes a large EDPM diaphragm valve, vacuum retention device, and vacuum breakdown device, serving as the unit of the entire vacuum flushing system. It is connected to the vacuum negative pressure system via vacuum pipes and air supply pipes.
Control Valve Assembly