Hey on the tail connections to a boiler that come with a fibre washer, do many plumbers also put so jointing compound around the fibre washer before tightening to help the seal?
Some do some don't if you use any compound don't get it on the threads or you'll have trouble getting the fitting off if you need to and do not over tighten it when fitting it some people have this fettish that you have to swing on fittings when you don't good luck
you dont need to , some poorer installers do, but the fibre washers arent designed to have anything smeared on them when fitting and be carefull not to over tighten them as it is possible to split them
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