Engine: General Subjects

1. A Cycling the potable water pump on and off by the action of the potable water hydropneumatic tank pressure switch in response to system demand changes.
2. B Allowing the potable water pump to run continuously while recirculating during periods of zero demand for potable water.
3. C Allowing the potable water pump to run continuously against a shut-off head during periods of zero demand for potable water.
4. D Cycling the potable water pump on and off by the action of potable water storage tank level switches in response to system demand changes.

Tip: press A-D to answer