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Posted by den on February 28, 2012 at 21:58:30:
In Reply to: Re: hot spots on morrison tube CB 800 posted by den on February 28, 2012 at 21:46:49:
: the ph of our condensate is consistently at 8 to 8.5 but the iron content in the feed water is at .7ppm which is higher then recomended. the water side of the boilers have virtually no scale. with a scope we looked at the hot spots on the waterside and those areas look like you have wire brushed them and appear to be slightly larger in size then what you see on the fire side. the mawp of the vessels are 150psi.
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