powerflush advice

[kingccc]

hi im wondering about the powerflush procedure. on a system with a y plan system how do you isolate the dhw circuit and the ch circuits seperately for flushing?

my question may sound thick but hopefully somone may help me out.

 

[seco services]

use the motorised valve

 

[kingccc]

how do i controll it, with the programmer?


how do i ensure it hasnt gone to midpoint which would not give full flow to ch or dhw ?

sorry for silly questions but i just want to understand my system

 

[seco services]

how do i controll it, with the programmer?

can do.

how do i ensure it hasnt gone to midpoint which would not give full flow to ch or dhw ?

switch heating on hw off then the hw port is closed.
turn heating off then the valve is held in last position. heating.

same when you flush hw primaries call for hw and heating off. etc
or isolate the mains power to the heating system
that puts the valve in hw port open heating closed.

you can tell if its in mid position or heating only the lever on the end will be floppy.

 

[kingccc]

what so if its in heating position or mid position the lever will be floppy. is there a way to tell which one its in?

 

[bengasman]

Are you planning to do the powerflush yourself?

 

[kingccc]

yes i am,

 

[bengasman]

Don't expect miracles from it. Like many things, the machine itself is just a tool, if you don't know how to use it, you could be lucky, or not get a good result, or even do more harm than good.

 

[kingccc]

well i should get decent results cos i dont care how long it takes, even if it takes me 2 days

 

[PRS1]

U will need a bung


This will stop the water from ****ing out of your attic!

 

[kingccc]

U will need a bung


This will stop the water from p******g out of your attic!

are bungs ok for pflushing, i wasnt sure if the pressure would push them off. i was going to isolate cold feed and cap the vent off

 

[bengasman]

I would not trust a bung, especially not if the machine is capable of pulsing/reversing.