- Thread starter
- #61
Yeah we use descalers at work all the time.Mine ran clear too, but doesn’t mean I got the crap out of the bottom. it wouldn’t flow
so it only was hot as it circulated left to right along the top. When I flipped it and got the crap
stuck to bottom I have to admit my cabin heat does encourage the word hot.
have you ever used caustic cleaners or acids to scour heater core internals?
Coil didn't seem bad in this case. Water blasting in one side blasted out the other.
Was only a bit of brown anti freeze, and I attributed that to those cheapass Bradfords pissing in the rad after drinking moonshine.

Top tanks on the cores look to be split so it can't cross over, has to travel down to the bottom tank and back up. Not much of a coil when you think of the square footage it's supposed to heat.