What are the causes and effects of your pump sucking air?

A few of the more common reasons for a pump sucking air are that the pump lid is cracked, or maybe the o-ring under the rim is broken or dirty.  The inlet could be cracked; your autocleaner may have a hole in the hose or the water level may be too low.

A swirl in the skimmer box will indicate a low water level, which could also be the reason why your pump is sucking air.

The skimmer box weir door may also be jammed, rather than floating.  Still can’t work out what the problem is? Contact your local PoolWerx technician by clicking here to book an assessment.