I've recently purchased a Seawater Pro water
maker with the 220 volt AC motor
and am just about to start the installation
. The previous owner said there used to be an engine
maker on the boat
, and the evidence of that is a high pressure pump
in a storage
locker, an unused through hole near the starboard engine
, and an unused through hole well above the waterline that appears to be a brine discharge line.
For reference, I've got a Roger Simpson designed cat with mid mounted shaft driven engines, just to try to paint
At the bow of the starboard hull
is a forepeak storage
area. It's where a forepeak berth would be, but there is no berth, just an empty fiberglass
room. There is an 80 liter diesel
tank in that area (the belly tanks
have probably long since rotted out and are not plumbed in), and fishing
rods along the wall.
I had convinced myself to install most of the water maker up in that area. I could mount the pressure vessels opposite the fishing
poles and the motor
could be mounted on the floor, forward of the diesel
This brings up a few problems.
First, the whole kit weighs in at around 50 kilos. That's a lot of weight forward for a cat and I'm a bit worried about the performance hit. The boat
isn't a performance boat and doesn't sail amazingly as is. I'm afraid I might turn her into a motor sailer if I put too much weight forward.
Another issue is movement of the forepeak area. That's the area that is going to get slammed around the most and have the most movement in big seas. I trust adhesives these days, but that's a lot of weight kicking around up front.
The advantage of the forepeak area is that I can see the runs for the diesel lines, so I know that running the water from the feed pumps to the high pressure pump
would be trivial, as would be the runs for the electrical
. Also, if there was a leak or spraying of salt water
, there isn't anything in that storage area that can't get wet.
When I think of other areas to mount the water maker, I can't really come up with a good place. None of the bow lockers are anywhere near water proof, so I don't think I can mount the AC motor in those. The only locker in the cockpit
is on the port side. I don't think there are any pipes or wires that run into the transom lockers, so I'd be drilling blind if I went that way.
I think the previous water maker had the pressure vessels mounted under the settee in the saloon
. But that is where the house batteries
live and I'd rather not test their water proofness.
The starboard side stern berth is an inboard single
. The berth is actually over the curved part of the hull
, so I don't think there is enough room to mount the motor in there. On the outbound side of the berth is a pantry and behind that a long cabinet. There is probably enough room in the long cabinet to mount everything, but then I'd be giving up a decent amount of storage, as well as that area not being super kind to random sprays of salt water
. Also, I haven't noticed any wire or pipe lines leading to that cabinet, so I'm not sure how I'd get power
and water there.
Am I being too paranoid about the weight penalty and potential slamming of putting the motor and pressure vessels in the bow? Or should I be willing to put quite a lot of effort into mounting the unit further astern?