Cruisers Forum

Join CruisersForum Today

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-08-2018, 12:48   #1
Registered User
SVMusic's Avatar

Join Date: Jul 2018
Location: South Carolina
Boat: 2000 Beneteau 40CC
Posts: 26
Any suggestions to keep in mind about Rainman water maker?

We have our Rainman Reverse Osmosis Watermaker order to arrive in a few weeks. Should we keep anything in mind for installing it?
We have the High Output, 120volt system.

Should we remember to do or NOT to do certain things?

Please check out our blog. You will love it!
"The Crabby Captain And The Sunny Sailor"
SVMusic is offline   Reply With Quote
Old 07-08-2018, 17:49   #2
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 29,244
Any suggestions to keep in mind about Rainman water maker?

Your installing it permanently I assume and not laying it on deck or something?
Your going to need a thru hull with strainer, and a way to power it of course, wire and circuit breaker and a thru hull for the brine discharge.
I know nothing about the Rainman, but if your doing an install, donít get in a hurry, there is a lot to installing a water maker and if you work at it and get it right, you will lose very little if any storage space.
The HP pump will be loud, best if itís not within your living space, and any plumbing and the membranes etc ought not be installed where a leak will be bad, like no hoses above your electronics. The pre filters need to be easily accessible and again nothing under them that will be hurt when you spill some water changing filters. Your going to have to mount a charcoal water filter for fresh water flushes, and of course figure a way to connect it to your water tank, and run a bypass then somewhere until you test the water, I ran mine to our shower sump.

When you mount the HP pump, try to mount it to something very solid, something that wonít magnify the vibrations which will make it noisier.

Spend a day or so dry fitting everything, I spent at least a week, the panels were my biggest challenge finding a place they would fit wasnít easy. I went through several different plans until I got it right, but be darn sure before you start cutting holes.

Again I know nothing of the Rainman, that was just generic statements

a64pilot is offline   Reply With Quote
Old 07-08-2018, 17:55   #3
Registered User
Macblaze's Avatar

Join Date: Nov 2013
Location: Edmonton/PNW
Boat: Hunter 386
Posts: 945
Re: Any suggestions to keep in mind about Rainman water maker?

Carolyn over at BoatGalley just did a review with a few hints...
Gaudeamus igitur iuvenes dum sumus...
Macblaze is offline   Reply With Quote
Old 07-08-2018, 19:34   #4
Registered User
zboss's Avatar

Join Date: Sep 2011
Location: On a boat
Boat: 1987 Cabo Rico 38 #117
Posts: 3,951
Re: Any suggestions to keep in mind about Rainman water maker?

Do not ramp the pressure up or down quickly - take a few minutes for each. Its a single sentence in the manual and it indicates that the reason is that it will help the membranes last longer.

Did you get the remote pressure control valve option? If so, this gives you a lot more options for mounting the RO unit out of the way. Same with the remote prefilter option. Really... for the prefilter you can just use off the shelf PEX plumbing.
zboss is offline   Reply With Quote
Old 08-08-2018, 08:28   #5
Marine Service Provider

Join Date: Mar 2014
Location: Gabriola Island/ Zihuatanejo, Mexico
Boat: Baltic 42DP
Posts: 8
Re: Any suggestions to keep in mind about Rainman water maker?

We have had our Rainman for two Mexico... We have the 120v unit and run it off of our Honda 2000 genset. Follow the instructions...ramp up the pressure slowly....I fill a 5 gallon bucket at the start and then use that bucket of water to flush the system after each use. We love the Rainman...only complaint might be that it is heavy and awkward to move around...we store the pump unit in the cockpit and store the membranes down below. It's a bit noisy to use with both the genset and the pump running on deck but we get easily 30 gals per hour so it's not so bad.
Try to use the cleanest source water you can access as the prefilter will get used up faster if you're using murky water.
We love it...have no plans to build it into the boat....
Baltictim is offline   Reply With Quote
Old 09-08-2018, 15:07   #6
Registered User

Join Date: Mar 2007
Location: Punta Gorda, Fl
Boat: C&C 40
Posts: 101
Re: Any suggestions to keep in mind about Rainman water maker?

We are driving over to Ft.Latida next friday for a hands on look see of the unit and hopefully bring one home. Comments here have been helpful...

Ted and Relinda is offline   Reply With Quote


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
Rainman Water Maker Andrew Grace Multihull Sailboats 14 18-04-2019 03:34
Anyone using Rainman water maker bouncingyellow Product or Service Reviews & Evaluations 40 04-08-2018 18:20
For Sale: Rainman Portable water maker for sale Huggi21 General Classifieds (no boats) 3 26-11-2017 21:12

Advertise Here

All times are GMT -7. The time now is 20:31.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.