As we transition towards shipping orders from the UK very soon, a small number of products will already be available in our UK warehouse with same-day dispatch, with stock visible on product level.
Have you recently vacuumed the pool? There may be an obstruction in the suction line to the pump and so you may need to flush the system with another pump.
The skimmer baskets may be full or you may have air in the system. If you have multiple suction lines that you can close, try using them one at a time as only one may be causing the issue.