Best to get a chemical cleaner and an inhibitor; there is probably plenty of grot floating round in your system, you don't want it to form another blockage or to jam your pump.
Put chemical cleaner in the system ,it says on the packet to leave it for up to 4 weeks for heavy sludge systems also got inhibiter but not put that in yet. I was gonna put that in after ther cleaner has done its stuff.
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