12
13. Water supply below the pump inlet (suction lift)
Reminders of best practice
Suction pipes drawing upwards more than 1m require a foot valve and
an intake screen.
Ensure there is at least 300m of water above the intake at all times.
Keep the intake screen at least 100mm above the bottom of the tank or
well
Avoid pipework which could trap air.
Use the Suction Pipe Recommendation chart to select the correct inlet
pipe size.
Note that intake pipes which are too small, long or have to lift
significantly result in a substantial reduction from the pump rated duty.
PTF
not recommended for
suction lift applications