How do I bleed a submersible pump in the cistern?

Paul Ahlers · Last updated: 09.08.2023

Worth knowing · 3 min. reading duration

There are many things you can do wrong when bleeding a submersible pump. So that you know exactly what to do and don't make any mistakes, we will guide you step by step.

How do I bleed a submersible pump in the cistern?

Paul Ahlers

Product expert and content author at Wisy

How can a submersible pump be removed from the cistern?

It is especially important NOT to lift a submersible pump by the power cable or pull it out of the cistern! This could cause the cable to come loose, which can lead to life-threatening electrical voltages.

Support cable for lifting and as an anti-tipper

Attach the support rope supplied to the submersible pump so that it can be lowered and raised again. The support rope is fixed in the dome shaft of the cistern and additionally protects the pump against tipping over.

Venting a submersible pump

BEFORE commissioning, the submersible pump should be vented to ensure proper functioning. This is done by filling it with water so that it can work optimally. Place the pump under water for about two minutes in the horizon cell with the help of the support rope.

Flush the pipe on the pressure side FIRST. Before connecting the submersible pump to the house piping system, the piping must be flushed. There is often dirt in the pipes from the construction work that would otherwise be carried to the connected consumers.