Radiator requires frequent bleeding

[ChrisJP]

What would happen if I just put two bottles into the header tank without draining? Presumably it would eventually disperse through the system.

If there's no leak, then inhibitor put into the header tank will not disperse through the system because there is no flow from header tank into the rest of the system.
To get inhibitor into the system, you need to turn off the water supply to the header tank and drain off enough water to empty the header tank. Then add the inhibitor and turn the water to the header tank back on to refill the system and draw the inhibitor into the system.
Alternatively, close both valves on a radiator, drain it out, and add the inhibitor to the radiator by removing the bleed valve or the plug at the other end and using a screw-in tube and funnel (available via a search online)

 

[MNW67]

If there's no leak, then inhibitor put into the header tank will not disperse through the system because there is no flow from header tank into the rest of the system.
To get inhibitor into the system, you need to turn off the water supply to the header tank and drain off enough water to empty the header tank. Then add the inhibitor and turn the water to the header tank back on to refill the system and draw the inhibitor into the system.
Alternatively, close both valves on a radiator, drain it out, and add the inhibitor to the radiator by removing the bleed valve or the plug at the other end and using a screw-in tube and funnel (available via a search online)

Thanks.

I've actually just started a new thread. I'm really sorry for messing this one up.

 

[fixitflav]

I have the same issue. My gas explodes. It's a very old open vent system and air collects in the bathroom radiator and it needs bleeding every week. I paid a plumber to come and drain the system a bit and put in two bottles of F1. But he wouldn't do it. He made it clear he didn't want to disturb such an old system. The only drain point is in the garage. What would happen if I just put two bottles into the header tank without draining? Presumably it would eventually disperse through the system. Could it do any harm, though, with such a high concentration in the header tank?

Do you have a Magnaclean or similar? That's by far the best way to add inhibitor, and to sample the water for testing. If not, worth considering getting one.

 

[talkingcats]

I have the same issue. My gas explodes. It's a very old open vent system and air collects in the bathroom radiator and it needs bleeding every week.

Could I ask how old your system is? Mine is contemporaneous with my house which is 35 years old, though the boiler has been replaced twice over that time. The latest is an Ideal high efficiency Logik Max Heat2 H24

 

[MNW67]

Could I ask how old your system is? Mine is contemporaneous with my house which is 35 years old, though the boiler has been replaced twice over that time. The latest is an Ideal high efficiency Logik Max Heat2 H24

Our system is also 35 years old. But it is still the original boiler (although probably not for much longer).