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Watermaker 2018

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Elgaard View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elgaard Quote  Post ReplyReply Direct Link To This Post Topic: Watermaker 2018
    Posted: 03 May 2018 at 18:12
Hello Fellas.

So its time to install some new gear, this time a new water maker, it seems like a jungle of products, any experiences with whats good and whats not, I currently have no idea what to buy... 

Whats top shelf products in 2018 ? 

Experiences much appreciated. 

Best 
Elgaard.
Hanse 575 Hull 108

Cruising : Currently in the Med
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marcopone View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marcopone Quote  Post ReplyReply Direct Link To This Post Posted: 05 June 2018 at 20:42
I installed a 100 l/h Schenker two years ago.
It is the 12V version.
I can switch it on when motoring in calm sea.
So far so good.
I fit it in the bow owner cabin under the berth, in front of the water tank.
You use space that would be wasted.
I think it is a better position than sail locker.
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Black Diamond View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 11 June 2018 at 02:23
We just installed a Blue Water Desalination unit producing 38 GPH.     Its a fairly compact installation and it fits nicely in the systems cabin/C3 layout we have.  See pictures..







Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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Touch of Grey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Touch of Grey Quote  Post ReplyReply Direct Link To This Post Posted: 11 June 2018 at 02:56
I installed the Schenker Smart 30 (about 25 litres/hr) on our 415 in Sept 2016 and it has lived up to expectations ... reliable and relatively low current draw (8-9 amps). Finding a home for it was made easier by the device being in two medium sized parts: the pump (which is under a bunk) and the RO/Energy Recovery System (which is in a locker).

The downside to a watermaker is the maintenance overhead, needing to pickle it if it isn't going to be used for a while and winterising it with food grade propylene glycol if sub-zero temperatures are a possibility. It's not something you can install and forget.
Allan Fraser
sv Touch of Grey
Hanse 415 / 0102
En route from Nova Scotia to Annapolis
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Elgaard View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elgaard Quote  Post ReplyReply Direct Link To This Post Posted: 22 August 2018 at 03:03
Seems impossible to pick on of another, theres loads of Watermakers... what should i focus on ? 
Hanse 575 Hull 108

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 22 August 2018 at 10:50
This will end up like anchors.   Lots of opinions....

Mine:

  1. production - how. much water does it make per hour
  2. installation - how much space does it need and where would it go?  22 inch membranes or 44 inch?
  3. 12V vs AC - usually related to whether you want things solar based as well as (1) above..  More GPH usually means AC.   Top end for DC watermakers seems around 14-17GPH.
  4. Maintenance - standard, easily obtainable, filters and easy access in case repairs are needed
  5. Noise - they *ALL* make noise if there is a high pressure pump involved.  You need to decide what is acceptable.
  6. Brand stability - this is tough, because so many of the big brands (like SPECTRA) are now part of bigger companies (like Parker-RACOR).   Being part of a big company is not always good.  It means they will be around for a while to help you with warranty issues but sometimes the things you liked when they were independent go away when the parent company focuses on cost control and making more profit.    In the end, you want to know they will be around for a few years.
FWIW



Edited by Black Diamond - 22 August 2018 at 10:50
Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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Elgaard View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elgaard Quote  Post ReplyReply Direct Link To This Post Posted: 22 August 2018 at 23:32
Rick. 

I have the Panda 10kw gen, initially i planned on getting something id run when i had the gen on for washing machines, Bauer JR compressor etc , so noise in that case wouldnt matter as the Panda would be running anyways, so i guess GPH is what im looking at, as well as easy maintanence anywhere in the world, even the most remote places. I dont know what kind of water volume i would even need either, everything is a balance.
 

I would love not having to run the Gen more than an hour or two a week but that leads to another issue, having a look at my power usage in general, would love to add 3m2 solar panels  " in front on the sprayhood" if its worth it?


Marco, 

That sounds interesting, 12v system and 100l/h while motoring and yes i also figured i would find space under the berth next to the water tank....  Ill have a read up on that aswell, thank you.

In general i would like to be alot more efficient with my power usage, i dont like to run motor or gen more than i have to.


Best 
Elgaard


Hanse 575 Hull 108

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Black Diamond View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 23 August 2018 at 00:50
Elgaard,

We have the same 10000i Panda genset.   its the same as the Mini-8 here in the US and I had that on my Hylas 49 for 10 years.  I liked it, although generators are also like anchors (opinions everywhere).

I have an AC watermaker (Bluewater Desalination Express) which runs when the generator is on.   I went with one that makes 38 GPH so that I don't need the generator on for more than an hour or so.  This year, spending 10 days on Nantucket and another 10 on Martha's Vineyard,   I ran the generator for a little over 2 hours and made 100 gallons of water.   If you want volume, quickly, then an AC unit is the way to go.   If you can live with the unit running for 3-4 times as long for the same volume, then a DC unit is OK.    The largest DC unit we thought made sense for our boat was the Spectra Newport MK400 unit which made 12-14 GPH.    In the end we went with Bluewater Desalination as it was all MilSpec hardware, industry standard filters, and heavy duty in all respects.   Spectra just got bought by Parker-Racor and so we had some concerns with what might happen to (until now) a good brand and good watermaker line as a result.

Its a fairly compact unit,  mounted in the systems cabin (the C3 layout) aft of the refrigerator/freezer compartments.  Its in there with my tools, cleaning stuff, brooms, mops and the washer/dryer.  They made 22" membranes for me, so i have 2 membranes. If I ever wanted more thru-put from the unit,  I can add a third 22" membrane and pretty much get a proportional increase in GPH.   One thing you might consider:   I had a stainless steel tray made to sit under the unit.  When you change filters or service the unit you can get spills and this keeps things contained.   See picture.   

We did *NOT* go with all the bells and whistles.  For example,  there are sensor based installations where the watermaker will automatically kick on when the tank goes below X%.     Personally,  if something is running at 800 psi for a couple hours on my boat,  I'd like to be there monitoring it.

We have the washer dryer and the dishwasher in our boat.   The washer dryer takes 7 gallons per load (including drying, which for some reason I cannot understand needs water to dry clothes!?).   The dishwasher (we think) uses a couple of gallons, but that's one of the two drawers.  I'm not sure if we ran both drawers at the same time.

I also put solar panels on my bimini (flexible solbian panels).  There was room for probably 2000 watts of panels but I ended up putting 700 watts which, on a sunny day, generates about 40 amps going into the batteries.  Maybe more if the load was there, but I've not seen more than 40 so far.   That's all I need.  My goal was to simply make sure my refrigeration and freezer were well powered and that the batteries had enough for the lights and nightly needs.   The standard Hanse battery bank is not that big (4x165 if you upgraded) and so you need something charging them every day.   I'd rather than not be the engine or generator.   The solar has worked out very well.      See picture again.

The argument you will legitimately get is that if you put solar on your boat you might as well get a DC watermaker.    Its valid if you can live with the lower output of a DC unit.   If you want more GPH, and you will be running your generator in the morning for hot water to shower or wash things,  then an AC unit makes more sense.

Good luck with the decision!








Edited by Black Diamond - 23 August 2018 at 01:19
Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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marcopone View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marcopone Quote  Post ReplyReply Direct Link To This Post Posted: 23 August 2018 at 19:42
Where did you fit the 10kw Panda generator?
I have the Fischer Panda 6kw installed in the motor ‘hall’ and there is not any space left for a bigger unit.
6kw is really thight for AC , water maker and induction cooking.
Besides this the Fischer Panda is not reliable, lot of problems.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 24 August 2018 at 01:57
Sorry.. my generator is an 8KW PANDA.   The European designations are different than the ones sold in the US.   Its in the normal suitcase behind the engine.   We've had good luck with ours.   Clean fuel,  change the oil twice/year, and its been happy.    I keep 3 spares kits on the boat with filters, belts, impellers and a Johnson pump.

My big complaint (and I mentioned this at the factory when I looked at construction and assembly) is that they put the side of the suitcase with all the parts you need to maintain (pumps, impellers, etc.) facing aft rather than forward.  As such its a right angle job to change the impeller.   I asked them if they could simply turn it around. The Hanse team told me they would lose the CE rating for the boat if they did that. 

Sure enough... my generator sucked some eel grass into the strainer the first vacation I took and the impeller (running dry) went.    I learned what a pain it was to replace that day and that they really should get the thing turned around.



Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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