When to do the system flush

[Millsy 82]

Just tell them you want it flushed before hand as well as after (you have to do after to remove all the flux solder etc) and that you are willing to pay the extra.

If possible I like to heat system up with cleaner in and fully drain system which would remove a fair amount of sludge then fill up and flush out again with a magnaclean/ filter connected you will be surprised at the amount of much it collects even in a short time. As long as it is fitted on the return it will stop most of the muck going through the boiler.

Me personally I think you should have a filter installed on the system the pros out way the cons every time and new boilers have smaller waterways in them so over the years the filter may save you a new heat exchanger.

 

[AWheating]

As it happens AW Heating, I did ask the last guy about a powerflush. He said he doesnt really do it anymore as it takes a lot of time and he gets good results with the magnacleanse (fitted after the new system is in place). You may be right that although he said its the time that puts him off, it's more the fact the customer isn't willing to pay for that time. However, even though I brought it up, he still didn't offer me the option.

I hate to go off topic, but aren't powerflushes risky on older pipework? This more gentle magnacleanse seems to be all the rage, which i'd be happy with, but only before the new systems fitted!

to me, your the customer. If you ask and are willing to pay for a power flush you get one. Your always right............ most of the time

Powerflush machines can show up weakness in systems but This is normally a weakness that will fail in the near future anyway. If you have part of the system being held together by rust it will fail, its normally better for it to fail when theres a heating engineer next to it.

A magnacleanse will only remove magnetic debris on its own relying on the system pump for flow rate. They are ok but work even better when connected to a PF machine.