Cruisers Forum
 


Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-04-2020, 10:01   #1
Registered User

Join Date: May 2006
Posts: 734
Are you selling your watermaker in Europe

Ideally, I am looking to buy a 230v 2540 single Membrane, simple, manually operated style. Low hours would be nice but broken would also be considered as long as the pump and pressure vessel were ok.
Anyone thinking of removing theirs?
All possibilities considered.
John
Fuss is offline   Reply With Quote
Old 11-04-2020, 08:57   #2
Registered User

Join Date: May 2006
Posts: 734
Re: Are you selling your watermaker in Europe

If it’s not 230v, or 2540 membrane, I guess that’s ok too
Fuss is offline   Reply With Quote
Old 22-04-2020, 09:05   #3
Registered User

Join Date: May 2006
Posts: 734
Re: Are you selling your watermaker in Europe

If it is 230v and a 2540 membrane model, I would pay 2500€ if it was in good condition and modular , I would not mind if the membrane needed renewing as long as the rest was in good condition. Aquatec, Echotec etc
Fuss is offline   Reply With Quote
Old 07-02-2021, 02:24   #4
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

I have a modular manual WM 3* Dow SW2540 and a Cat stainless pump 2SF42 with 230V motor, makes 180-200LH.
2 years old, but only 10hr (pickled) - we are in the Med, fresh water everywhere.

Contact me if interested.
__________________
Sailing sabbathical anyone?
SVI is offline   Reply With Quote
Old 07-02-2021, 09:39   #5
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 2,347
Re: Are you selling your watermaker in Europe

You can built a 100L/hr dual membrane system for 1500€ yourself.
It's not as efficient as a Spectra system, but costs about a fifth of it.

It's based on a pressure washer pump, which usually has the shortcoming that the pumps corrode after some time or if they are pickled.
But if you flush the system with freshwater after use and than disconnect the pump and drain it (its a 1minute job with quick connectors) so that it's dry, the pump will last very long.
A dry pump does hardly corrode, especially when used regularly.

https://www.cruisersforum.com/forums...s-29905-6.html
https://www.albin25.eu/index.php/tec...rmaker?start=3

https://watermaker.jimdofree.com/
Franziska is offline   Reply With Quote
Old 07-02-2021, 10:16   #6
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

The flow rate of a pressure washer is not enough for the membrane, and the expensive membrane will die quickly.
__________________
Sailing sabbathical anyone?
SVI is offline   Reply With Quote
Old 07-02-2021, 13:01   #7
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 2,347
Re: Are you selling your watermaker in Europe

Seems to work well for some. Read the sites I quoted.
Quote:
Originally Posted by SVI View Post
The flow rate of a pressure washer is not enough for the membrane, and the expensive membrane will die quickly.
Franziska is offline   Reply With Quote
Old 07-02-2021, 14:03   #8
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

Quote:
Originally Posted by Franziska View Post
Seems to work well for some. Read the sites I quoted.
Do YOU have a pressure washer as a watermaker pump reasonably long time?
SVI is offline   Reply With Quote
Old 07-02-2021, 14:49   #9
Registered User
 
Sailmonkey's Avatar

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 8,849
Re: Are you selling your watermaker in Europe

Quote:
Originally Posted by SVI View Post
The flow rate of a pressure washer is not enough for the membrane, and the expensive membrane will die quickly.


Please describe the exact pressure washer that is insufficient for a membrane, as well as the size of a membrane.

There are many pressure washers in existence that have much higher flow rates than my purpose built watermaker.
Sailmonkey is offline   Reply With Quote
Old 07-02-2021, 15:18   #10
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 2,347
Re: Are you selling your watermaker in Europe

In general it is accepted that a desalination plant needs between 800 and 1000 psi. This is equivalent to 55-69 bar.

Here is one source stating this, there are many others:
https://www.oas.org/dsd/publications...ressurize%20it.

Kärcher, which is one of the most renown manufacturers of pressure washers, states that even its small system K2 pressure washers have about 110bar=1595psi pressure:
https://www.kaercher.com/int/home-ga...-16730060.html

Which is way more than the minimum pressure of 800-1000psi required.

Further there are quite a few folks doing it.

I never claimed I do this yet, but I will install such a system this summer. Precisely because it is working for many and, I do not have the cash for a Spectra, which is surely a great piece of kit.

Read the article I posted any you'll see that they use is for quite some time successfully.
Quote:
Originally Posted by SVI View Post
The flow rate of a pressure washer is not enough for the membrane, and the expensive membrane will die quickly.
Franziska is offline   Reply With Quote
Old 07-02-2021, 15:18   #11
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

Could not be bothered. If you want to waste your money - go for a pressure washer...
__________________
Sailing sabbathical anyone?
SVI is offline   Reply With Quote
Old 07-02-2021, 15:20   #12
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

You do not see the difference between pressure and flow rate )
__________________
Sailing sabbathical anyone?
SVI is offline   Reply With Quote
Old 07-02-2021, 15:22   #13
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 2,347
Re: Are you selling your watermaker in Europe

That's a bit un substantial isn't it?
Quote:
Originally Posted by SVI View Post
Could not be bothered. If you want to waste your money - go for a pressure washer...
Franziska is offline   Reply With Quote
Old 07-02-2021, 15:25   #14
SVI
Registered User

Join Date: Feb 2012
Boat: FP Salina 48 / owner / evolution
Posts: 252
Re: Are you selling your watermaker in Europe

I love theoretics like you ))
__________________
Sailing sabbathical anyone?
SVI is offline   Reply With Quote
Old 07-02-2021, 15:56   #15
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 2,347
Re: Are you selling your watermaker in Europe

So here are the flow rates and pressures of spectra desalinators:
https://www.google.com/url?sa=t&sour...g44XMp-Aou23ty

A typical domestic pressure washer has a flow rate of about 6-9l min which equals 1.6 - 2.3gal min, pending on the model
You can find that also in the Kärcher manual.
No need to choose the very smallest one.

So this is not far of the Spectra figures.
Next, your call.
Quote:
Originally Posted by SVI View Post
I love theoretics like you ))
Franziska is offline   Reply With Quote
Reply

Tags
Europe, rope, water, watermaker

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
Free: Crooks You Run into when Selling your Boat Hoodsail Classifieds Archive 42 15-08-2014 14:41
Did you build your own compost toilet? Are you using it successfully on your boat? magentawave Liveaboard's Forum 9 28-06-2013 12:36
What have you dealt with when selling your boat? Jort Vendor Spotlight - Great Deals for CF Members! 1 10-03-2013 14:28

Advertise Here


All times are GMT -7. The time now is 23:02.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.