KAD32 question

New Boater

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7 Aug 2024
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Hi all,

Quick question!

What is this pipe going into the side of the elbow? (the smaller green elbow with the two bolts)

I followed the pipe down and when squeezing it low down it was crispy inside (assuming scale build up) after a few squeezes and bendings the crispyness went away!

I am assuming I have dislodged a load of scale but where has it gone?

Assuming (yet again) it has all gone somewhere it will be fired out the exhaust on start up?
 
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