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Old 03-23-2014, 08:38 PM   #21
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City: Wrangell, Alaska
Vessel Name: Dauntless
Vessel Model: Kadey Krogen 42 - 148
Join Date: Jan 2013
Posts: 2,807
ummm, I have dismissed that idea early in the process, but maybe too early.

i am already adding a second alternator to the engine, so the question is, where would I mount this pump?

i may even risk the wrath of Brian at AD and give him a call tomorrow.

Thanks, though it still seems the most viable option for me, I am not thrilled about using 45 amps to produce 8 gal of water an hour. (on the other hand, I have already eliminated 20 amps per hour with the new fridge/freezer, so maybe my alternator will need something to do??)

I may have to put on my thinking cap tonight.
Richard on Dauntless,
New York

a Kadey Krogen 42 currently:
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Old 03-23-2014, 10:18 PM   #22
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City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,166
45a for WM and 20a for fridge is a lot of amps for an alt on a slow turning engine. But that can be managed by shedding loads while making water. I'm not a fan of adding aux drives on the front of the engine such as WM pump, that can be a mess. Elec drive may be sub optimal in some regards, but way simpler.
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Old 03-26-2014, 06:01 AM   #23
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Join Date: Oct 2007
Posts: 22,148
On the hook you will be running the noisemaker to recharge the batt set.

An AC unit can be far more powerful than the DC units for the lowest noisemaker ON time. AC motors have longer service life , and are cheaper to replace.

Underway an inverter will operate a good sized water maker , so there is no downside to the more powerful AC unit.

AC vs DC is not a religion , the tool that works BEST (you decide BEST) would be the most useful.

To me best is least expense in terms of , lowest operating hassle and cost .
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