On 15/1/22 4:48 am, 'Andrey Sychev' via Brewtus wrote:
I used up all of the citric acid but ultimately acrylic sediment on the top of
my boiler persists. Some of it seems baked on and I don’t know if some
particles collected in a line but with upside down machine and head group bolt
removed boiler empties a drop at at time.
Hi Andrey. You're having a long path on this job, my commiserations!
The white stuff inside the heating element which gets into the water is
(I believe) pretty inert. Cosmetically poor, but it won't hurt people.
The copper/brass inside is pink, so the acid has done it's job with the
stuff on the copper pretty well. I don't have any clues as to what the
white stuff is, but if it is stuck fast then it might not actually be a
problem. If it was my machine, I'd be using a metal skewer or something
pointy and stainless to harvest a sample, then put that on a white
kitchen plate and see if vinegar or citric will dissolve it. If it
does, then more citric acid *should* remove it. If it is hard and
glassy I have to say I'd be tempted to ignore it though...
Your insulation actually looks in better shape than mine, and I also
thought about replacing it.. But to do so I can only think you need to
physically remove a boiler, wrap it and then re-install. I can't see
how you'd snake a new layer of fuzzy insulation through. It'd snag on
everything and be an exercise in frustration. So I decided I was being
a bit too precious and have ignored the poor state of the insulation.
If I do take a boiler out in the future, I WILL put some new stuff in
though!
Cheers
/Kevin
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