ATMOSPHERIC VACUUM BREAKER/CHECK VALVE
(571 Vac Chk) must be 6” above flood rim of the highest fixture connected to the waste holding tank. (ASSE 1001-02; device shall not be installed where the venting of water from the device during normal functioning will cause damage.
(571 Vac Chk) must be 6” above flood rim of the highest fixture connected to the waste holding tank. (ASSE 1001-02; device shall not be installed where the venting of water from the device during normal functioning will cause damage.
Vacuum Breaker should only be used on one fixture at a time. This keeps the pressure in the line predictable and the vacuum breaker able to handle it.
Vacuum Breaker is a high-hazard protectant. Because of this, it can be used in a low-hazard application as well.
Vacuum Breaker should be installed a minimum of 6 inches above the highest point of any item connected to the waste tank where the flusher is installed. This vacuum breaker should also not be under more than 12 hours of continuous water pressure. This could cause the check valve to shut or become stuck.
Make sure that this vacuum breaker is installed upright. It relies on gravity to properly function and if it is installed in a different position, the valve may not fully open.
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