Mainly for kevplumb but any advice appreciated. Anti syphon trap has plastic disc inside ASD when top taken off. Should this be removed, and should the top be screwed hand tight or left loosish?
You should not open the ASD, except to clean it if it fails to seal. The disc is the sealing device - do not remove! The top should be a tight fit to deter unauthorised fiddling......
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local