Chemical Cleaning of Central Heating

I want to replace my diverter valve. I've got a Worcester Bosch 35CDi II and I would like to know whether a bucket can be placed under the drain taps for draining the boiler or would I have to buy tubes to fit on the drain taps.

Also I want to chemical clean the system. I'm doing it myself and want to know the best and easiest way to clean the system. I've seen a dosing vessel on the internet and would like to know if its a good way to chemical clean. If so where do I fit this? It says to disconnect the filling loop on the boiler at the cold water supply and connect it to the dosing vessel. Then connect the vessel's hose back to the cold water supply. The valve on the cold water supply (and non return valve if fitted) can now be opened, flushing the rust inhibitor/chemical solution inside the vessel and quickly into the central heating system.

If I do manage to do a chemical clean will the chemicals make there way into the hot water system and come out of the tap or are they completely independent.

I cant find a filling loop on my boiler. I'm looking for a flexible pipe thats disconnects. They all seem to be non flexible pipes. Can someone help.

Thanks

Worcesters usually have their own filling valve built in.

Brighteyes said:

If I do manage to do a chemical clean will the chemicals make there way into the hot water system and come out of the tap or are they completely independent.

Click to expand...

1 No and
2 Yes