All the different reasons you can get an airlock. Sort out the problem first which caused it in the first place, then clear the airlock. I will show the different methods of doing this.


Saved some money on calling a plumber? Click the SUPER THANKS button. Or make a donation at Al`s website, http://www.dereton33.com/page118html . Visit Al`s plumbing shop for parts at https://www.amazon.co.uk/shop/dereton33,
Thanks Al