QuoteMy question is before I return the boat to the water I could apply a similar process, but run Zep/Lime Away/other liquid(??) instead of antifreeze, leave for an hour with the engine off, and then run again with fresh water to flush.
Raymond,
I've also considered a check/maintenance on Shamrock's heat exchanger. Like you there's never been a problem, so it's never made it to the top of the to-do list. Also, it's not a common problem with boats in the Great Lakes, at least that I'm aware of.
I wouldn't do it as you suggested. Reason, the Lime Away would be in the raw water pump. Don't like that. Also, there's the zinc anode (in the heat exchanger) to consider. I admittedly don't know much about the Lime Away so I may be mistaken about that.
If I do some maintenance, think removing the end caps and taking a look would be the way I'd start. Then go from there. Maybe just reassemble. Maybe more.
Just my 2 cents,
Jim