What should be done when the apparatus is in pump gear but not discharging water?

When the apparatus is in pump gear but is not discharging water, the correct approach is to crack open the tank fill/recirculation valve and the tank to pump valve. This action allows for a proper flow of water within the system, which can help prime the pump and ensure that it is functioning adequately. Cracking these valves creates a pathway for water, which may assist in allowing air to escape and promote a better flow into the pump.

Adjusting the tank fill/recirculation valve helps manage the water flow correctly while helping to prevent air locks that can sometimes occur when the pump is engaged but not discharging water. This also maintains the pump’s efficiency and ensures that it can prepare for discharge quickly when the need arises.

The other options do not effectively address the need to manage water flow within the pump system under these circumstances. Proper management of valves is essential for ensuring that the pump can operate at optimal levels, especially in situations where immediate water discharge is necessary.