CH drain down help

[dcm017]

flush it out 'properly' and add fernox?

Job done! Thank you all for advice.

I hadn’t expected it to take as long as it did. I guess that draining a system in a bungalow is likely to be slow. Ok to start with but once the water out of the feeder tank it all slows down. I did find a drain off valve below an obscure radiator. So much gunge to be removed from the feeder tank as well. When all turned back on I had an F23 boiler error (Vaillant) that cleared on a fresh restart, and it all works. Hurrah!

 

[aet1]

Breath a sigh of relief the bungalow is not flooded?

 

[dizjasta]

Job done! Thank you all for advice.

I hadn’t expected it to take as long as it did. I guess that draining a system in a bungalow is likely to be slow. Ok to start with but once the water out of the feeder tank it all slows down. I did find a drain off valve below an obscure radiator. So much gunge to be removed from the feeder tank as well. When all turned back on I had an F23 boiler error (Vaillant) that cleared on a fresh restart, and it all works. Hurrah!

F23 fault code referres to a safety shutdown as a result of a temperture senors being out of range. Most likely reason is a small amount of air in the system that the circulator pump has now removed.

 

[Richard_C]

Good news. DIY can save you lots on jobs like this because you could end up paying a plumber to watch the system slowly empty. ( Not suggesting they overcharge, the time it is emptying is time they can't be on another job.)