- Presence of air in a pipeline can cause flow obstruction - up to a complete stoppage, at times. It can also cause water hammer or an inadequate supply of water.
- An air vent should be placed directly after the pump and before the pump check valve.
- On long runs, place an air vent at 550-900 yard intervals, as well as one on each end of the run.
- Install vents at the inflow side of filter heads to prevent air from entering the filters.
Additional recommended mounting locations include:
- On top of the filters, to release air from within and to enable draining and backwashing.
- At the outflow side, to release remaining air and to prevent vacuum conditions and suction of filter media out of the filter.
