Hes gone now probably back to facebook ecotech icians , a group of pompous arses
There are so many issues and things that are missed, I am surprised this guy is still being allowed to look at the boiler ........
a turbidity test is done on the water in a few seconds which gives a rough PPM count 1000/800/600/400/200 (a pass is 200 or less)
Looking at the pic you show of the water 1000 seems quite probable.
You need someone to review the flue. to be honest you should not have let the illegeal fitter back any where near it and cetainly should not be using the boiler until its fully tested and proven safe by someone who actually has a clue. (preferably qualifications and tools to match)
At the very least.
I've decided that this entire series of threads is a wind up.
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