On 2008-05-28 00:10:46 +0100, Dave said:

Andy Hall wrote:

Snip

The first thing is that you need to thorughly flush out the sludge and solids.

There are two reasonable ways to do that:

- Drain system, remove radiators, take them outside and flush them with
a mains hose or pressure washer. Flush water out at each radiator
position.

- Power flush the system. This can be done by paying someone N x
hundred ££s or by renting the equipment and DIYing it.

Just what is a power flushing machine? can a pressure washer be adapted
to do the job?

Dave

It's a container with powerful pump, a set of valves and hoses and
connectors for the system normally fit the pump position. Special
flushing solution is used and is circulated through.


I've used a pressure washer outside to flush through radiators but
not indoors