Plumbing - Air Locks (even more)

So, the goal is to get the air out of the system so that the pump can operate properly.

What to Do About Air Lock in Waste Pipe

Airlock in Pipes? Here's How to Clear It

How to remove air locks – Reigate Plumbing and Heating Services – Kensign Engineering Ltd

Guide/Liquid Airlock - Oxygen Not Included Wiki

Air lock - Wikipedia

How You can Manage with an Airlock in Pipes

Experiencing Airlock In Your Plumbing System? - Robinson Plumbing

How to Fix Air Lock Problems in the Sewer Line

AIR LOCK IN WASTE PIPE? HERE'S HOW TO FIX IT

How You can Manage with an Airlock in Pipes

Standard Plumbing Heating & Air Conditioning