powerflush

[ubend]

Just finnished doing my first powerflush and not one leak so far!i completed it on my own central heating system as it needed doing before it goes up for sale.Would like to thank everyone on the forum who wrote articles on the subject, it was all great help, a big thanks to all.

one thing i wont forget in a hurry is getting the damn pump off, what a job!does anyone have a tip for doing that??

satisfaction of doing your own powerflush instead of paying BGas?priceless..

 

[Alanka]

Only one point to make - sometimes gripping the pump nuts too firmly with a gland spanner is sufficient to distort them, making them jam. If you apply the minimum squeeze you can often find the nuts unscrew quite easily!

This surprised me when I first came across the effect.

PS There is a clamp you can buy that fits over the pump nut to help spread the load applied by the spanner or wrench. This prevents the nut from distorting and so makes it easier to undo/tighten.

 

[BluePlumber]

Only one point to make - sometimes gripping the pump nuts too firmly with a gland spanner is sufficient to distort them, making them jam. If you apply the minimum squeeze you can often find the nuts unscrew quite easily!

Well, I learn something new everyday, whenever my nuts don't turn, I always find a hammer a chisel and a good old whack does the trick, will have to change my method for next time

 

[stevetheplumber]

Well, I learn something new everyday, whenever my nuts don't turn, I always find a hammer a chisel and a good old whack does the trick, will have to change my method for next time

im in the big hammer gang as well either tap it round or in extreme case two hammers tapping either side and working round breaks the rust seal

 

[heating-eng]

i havnt done a powerflush for a while now


just found this site tells you a bit about powerflushing
Leeds

 

[Billy Bob Bob]

wd40 sorts out stubborn pump unions

 

[ubend]

Thanks for the tips everyone..

 

[heating-eng]

Thanks for the tips everyone..

which powerflush machine did you buy ..

I have one of these

 

[WHPES]

Buy the pump head adaptor for the flusher - saves the effort of having to undo the nuts and you can shut off the valves when fitting it to save taking time draining down.

 

[heating-eng]

Buy the pump head adaptor for the flusher - saves the effort of having to undo the nuts and you can shut off the valves when fitting it to save taking time draining down.

never used one ..not really sure how

 

[WHPES]

You take the pump head off and screw it in place instead. Saves having to undo nuts and remove pumps in inaccessible places!

 

[heating-eng]

You take the pump head off and screw it in place instead. Saves having to undo nuts and remove pumps in inaccessible places!

what happens with the diverter valve ect in boiler ? Combi

 

[LIFES A GAS]

Only one point to make - sometimes gripping the pump nuts too firmly with a gland spanner is sufficient to distort them, making them jam. If you apply the minimum squeeze you can often find the nuts unscrew quite easily!

This surprised me when I first came across the effect.

PS There is a clamp you can buy that fits over the pump nut to help spread the load applied by the spanner or wrench. This prevents the nut from distorting and so makes it easier to undo/tighten.

I agree with Alanka, brute force not always necessary, worst case scenario: carefully hacksaw through the unions and then replace them with new ones but if system easy to drain just change the valves completely. Also worth investing in a BOA constrictor clamp to hold the pump.
Martin