Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 06-10-2019, 00:49   #1
Registered User

Join Date: Sep 2019
Location: Germany
Posts: 172
Very small water-maker oder Big one for very fast refilling?

Hi guys

I am Not a Fan of complex tech boats But a water Maker can make life easier i damit That.
Now... I was thinking about a very small one running 24/7 on solar Power or alike
But know some one strongly advised a large one That can fill my bunker weithin 3-4h Under Motor.
1300 Liters. Our consumption is about 100liters per day.

He said That Would be way more versatile on a journey.

What Do you guys think?
__________________

__________________
regards
Ralph
Ibetitsthisway is online now   Reply With Quote
Old 06-10-2019, 01:08   #2
Moderator
 
Pete7's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Solent, England
Boat: Moody 31
Posts: 12,253
Images: 14
Re: Very small water-maker oder Big one for very fast refilling?

Quote:
Originally Posted by Ibetitsthisway View Post
But know some one strongly advised a large one That can fill my bunker within 3-4h Under Motor. 1300 Liters. Our consumption is about 100liters per day.
Just confirm you have 1300 litres on an Albin 25, that's 1.3 tonnes of water.

Pete
__________________

Pete7 is online now   Reply With Quote
Old 06-10-2019, 04:18   #3
Registered User

Join Date: Jul 2014
Location: Crete , Greece
Boat: Beneteau first 26
Posts: 655
Re: Very small water-maker oder Big one for very fast refilling?

Small one is better I believe running from solar less complex
__________________
Wonder how it feels to circumnavigate on a 26 feet boat ?
Check our YouTube channel
gmakhs is offline   Reply With Quote
Old 06-10-2019, 04:56   #4
Registered User

Join Date: Feb 2009
Posts: 2,146
Re: Very small water-maker oder Big one for very fast refilling?

Not much solar power at night
motion30 is offline   Reply With Quote
Old 06-10-2019, 05:09   #5
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 11,307
Re: Very small water-maker oder Big one for very fast refilling?

A water maker system, of the size classes normally found aboard cruising boats, has the same basic components requiring the same maintenance regardless of output (again, in the context of cruising boat sized systems).

So, what is the advantage of a smaller unit other than smaller physical size?

Lower initial cost?

Less energy use/more efficient per galon/liter? Nope.
belizesailor is offline   Reply With Quote
Old 06-10-2019, 05:30   #6
Registered User

Join Date: Nov 2015
Location: South Florida of course, lol...
Boat: Current Bristol 32, past Columbia 26, Tahiti Ketch
Posts: 174
Re: Very small water-maker oder Big one for very fast refilling?

Quote:
Most full-time cruising couples that we knew averaged 4 to 6 gallons per person per day. Note that single handers may use a bit more and families a bit less as "boat use" is divided amongst fewer or more people.
https://theboatgalley.com/how-much-water/

You are using 26 gallons a day? Gotta stop washing the car...
Capn Jimbo is offline   Reply With Quote
Old 06-10-2019, 05:40   #7
Registered User

Join Date: Sep 2019
Location: Germany
Posts: 172
Re: Very small water-maker oder Big one for very fast refilling?

The albin Was a test mule.
We used 40l a day for cooking and washing (Salt water removal) With external cold shower.

The 100liters a day... As well as the water Maker... Are for the coming cruiser. I added Hot shower in cold aereas and saltremoval from Deck to the water consumption a day.

My cruiser candidate has nö heating and no WM at the Moment. But 1300l fresh water and 1400 diesel


I know about All the water saving people.
We travel for 20 years in Campers and small boats and we use 10-15l per Person per day.
I calc With 20.
Plus luxury shower und Deck washing.
__________________
regards
Ralph
Ibetitsthisway is online now   Reply With Quote
Old 06-10-2019, 06:01   #8
Registered User
 
CaptTom's Avatar

Join Date: Apr 2004
Location: Southern Maine
Boat: Prairie 36 Coastal Cruiser
Posts: 1,652
Re: Very small water-maker oder Big one for very fast refilling?

To answer the question in your thread title, I don't see the value in fast refilling.

A higher capacity system will require more power, more space, and larger (and more expensive) parts - both initially and replacements.

The only possible benefit I see would be if you wanted to make a lot of water fast when you're running the genset or on shore power. But most people say you shouldn't run an RO system in port, so the shorepower option is limited. If you think you can run it off solar alone, then obviously a smaller (slower) unit would have lower power draw.

One final drawback: Each time you use it, there's a procedure to start and stop. If you stop for too long, there's another procedure to pickle it. It seems it would be more efficient to do these procedures less often, and let it run longer each time.
CaptTom is offline   Reply With Quote
Old 06-10-2019, 07:11   #9
Registered User

Join Date: Jan 2017
Posts: 12,432
Re: Very small water-maker oder Big one for very fast refilling?

I'm the opposite, **if**

you have plentiful ICE power source that is being regularly run anyway several times per week

then maximize your ability to make 150L per hour, get it done, fill the tanks wash the decks and shut it down. CruiseRO for the win!

However, if the boat has so many panels that you are regularly producing **excess** energy over and above what's needed otherwise, and

**if** you don't find the noise annoying

then leave the much more energy efficient but tiny L/hour Spectra unit working 24*7
john61ct is offline   Reply With Quote
Old 06-10-2019, 08:16   #10
Registered User

Join Date: Feb 2017
Location: Panama, Central America
Boat: CT 49, 1989
Posts: 686
Re: Very small water-maker oder Big one for very fast refilling?

Quote:
Originally Posted by john61ct View Post
I'm the opposite, **if**

you have plentiful ICE power source that is being regularly run anyway several times per week

then maximize your ability to make 150L per hour, get it done, fill the tanks wash the decks and shut it down. CruiseRO for the win!

However, if the boat has so many panels that you are regularly producing **excess** energy over and above what's needed otherwise, and

**if** you don't find the noise annoying

then leave the much more energy efficient but tiny L/hour Spectra unit working 24*7
Yes agreed,

Most cruisers try and cordinate WM running with engine or generator running. Even solar you are going to obviously try and time this for peak solar production after the batteries are topped up, usually early afternoon.

WMs, even small DC ones its usually a significant current draw. So most people dont want to draw their batteries down.

Better IMO to try and minimise your engine/ generator and WM run time. This obviously means less diesel and less engine maintenance time used.

The biggest capacity WM that you can practically afford, fit and power the better I reckon.

Just my 2c.
Q Xopa is online now   Reply With Quote
Old 06-10-2019, 08:26   #11
Registered User

Join Date: Jan 2017
Posts: 12,432
Re: Very small water-maker oder Big one for very fast refilling?

especially given this high-volume use case, and that WMs are optimistically rated, like alternators and solar panels

Those getting by on a gallon or two per day, may be a different story
john61ct is offline   Reply With Quote
Old 06-10-2019, 08:41   #12
Registered User

Join Date: Oct 2009
Location: Out cruising/ St. Augustine
Boat: Bruckmann 50
Posts: 736
Re: Very small water-maker oder Big one for very fast refilling?

One thing I think many people forget about is that water makers are usually somewhat noisy. Even the small ones can be annoying to hear all day unless they can be isolated with soundproofing, etc. We cruised 20 years ago or so with a little 1.5 gph model and did fine. We ran it all night so we weren’t bothered by the noise (it was back in cockpit locker and we slept forward).
Now we use a CruiseRO and make water when we need to motor or are otherwise running the generator since keeping a load on the gen is a thing you have to pay attention to as well. The noise seems to not be an issue since something else is running. Even the quietest thing that is running while you are sitting at anchor can be annoying to us.
Just one thing that is not often mentioned and something to think about.
jkleins is offline   Reply With Quote
Old 06-10-2019, 08:42   #13
Registered User

Join Date: Sep 2013
Location: Virginia
Boat: Jeanneau SO469
Posts: 106
Re: Very small water-maker oder Big one for very fast refilling?

If you have a genset there are watermakers available that produce over 35 gal/hour. I found this a good system that I tune once or twice a week when I run the generator anyway.
Peeew is offline   Reply With Quote
Old 06-10-2019, 08:43   #14
Registered User

Join Date: May 2011
Location: Australia/South Pacific
Boat: Westerly 43
Posts: 177
Re: Very small water-maker oder Big one for very fast refilling?

The two of us are quite profligate using roughly 50 litres of water per day and I find our 25 litre per hour WM sufficient. We only run it while motoring or running the generator. Our combined run times are usually at least 2 hours per day so production volume is not a problem. It's a simple low weight and low maintenance system which is a plus.
Budawang is online now   Reply With Quote
Old 06-10-2019, 09:16   #15
Registered User

Join Date: Jan 2015
Location: Victoria BC
Boat: 1980 Hunter 36
Posts: 944
Re: Very small water-maker oder Big one for very fast refilling?

So I went through this recently, and bought a high capacity water maker, something like 20-30 gallons an hour.

I never ended up turning it on - I didn't use enough water! They need to be run every couple of days ideally, and I was only using 1 to 2 gallons a day! It also needed a 10 minute flush after each use and used a lot of power, so basically it wasn't worth running unless you were going to use it for a couple of hours - but then you'd have to re-pickle it as it wasn't going to be used for a while. Wrong type for my use case.

I ended up uninstalling it and got a second hand one that does 1 gallon an hour. I can just run it a couple of hours every couple of days and it keeps me topped up.

If anyone wants to buy an unused high capacity watermaker in Mexico give me a PM!
__________________

__________________
S/V Gudgeon
www.gudgeonblog.ca
alctel is offline   Reply With Quote
Reply

Tags
water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Head Oder! Tomrob Monohull Sailboats 13 13-09-2019 05:58
Solar Panels - one big one or two small ones ADMPRTR Electrical: Batteries, Generators & Solar 29 05-03-2013 15:38
One Very, Very, Very Lucky Sailor nigel1 Off Topic Forum 13 09-11-2011 08:04
Refilling Water Tanks ironhorserider2 Plumbing Systems and Fixtures 19 29-09-2011 07:01
Very Small, Very Efficient Ice Cube Maker Wanted for Sundowners Fuss Plumbing Systems and Fixtures 21 20-07-2010 07:09

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 05:50.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.