Boiler bumping & banging

I can't imagine a lifeform that would survive the temps in a boiler. Sounds to me more like hardness scale from the water. Are you in a hardwater area? All these descaling agent should not be necessary in such a newish system. I didn't have to descale my system until it was at least 10years old. afaik these chemicals are acid so you are probably eating your system away. My boiler kettling was eventually cured by fitting a pump that was man enough for the job..

Don't be too sure... Did you never see Quatermass and the Pit?

.andy

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A biological gunge can form in the F&E tank and grow very happily in the warm condiditons there. No doubt it will die in the boiler but its sludgy remains, I am told, can cause significan problems!! [...]

My pump is a MAN'S pump - I can assure you.

Eric

You must be near my age, God help you.

Eric

Not that you have them but thermophilic bacteria can and do live in conditions much harsher than your boiler can muster.

Stopped the kettling sound in my system with a dash of fairy liquid several years ago. Dad said it was an old way to get rid of it, stopped it in about 1 minute. i don;t know why/how it should work, and it didn't seem to have any negative effects by addition.

maybe the boilermen can give a reason why it did it, and also mostr likely tell you why you shouldn't do it ;)

When used for washing up, dishwashing liquid reduces the surface tension of the water. I would imagine that in the application you describe it would stop formation of large steam bubbles.

However, there is a downside. It contains a lot of salt, so you wouldn't want to use much.

One of the chemicals specifically for this purpose, e.g. from Fernox or Sentinel would probably be a safer option.

.andy

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Salt!!! How much salt is a dash of washing up liquid going to contain???? And I doubt the accuracy of this anyway.

Eric

OK i was thinking along the lins of surface tension.

I will know if there is a next time and get my arse down to the plumbing shop :)