Thread Tools Search this Thread Display Modes
Old 07-16-2018, 07:46 PM   #1
Veteran Member
City: Alamitos Bay Marina
Country: Carlsbad, CA
Vessel Name: DESTINY
Vessel Model: Bayliner 4588 Extend Hull & Hard Top
Join Date: Nov 2017
Posts: 33
Watermaker Fresh water flush-

Have had our water maker for about 18 years now, just replaced the membrane and notice on the booklet that is said to fresh water flush at low pressure only.

So my question is how long does everyone run there fresh water flush and are you backing your pressure down the 700-900psi down to 0 when you do flush.

This is different then what I have been doing and what my original manual suggests. Last membrane lasted me about 10 years.

mdstrum is offline   Reply With Quote
Old 07-16-2018, 08:01 PM   #2
tiltrider1's Avatar
City: Seattle
Country: USA
Vessel Name: AZZURRA
Vessel Model: Ocean Alexander 54
Join Date: Aug 2017
Posts: 1,380
Don’t know, mine auto back flushes every 7 days.

tiltrider1 is offline   Reply With Quote
Old 07-17-2018, 12:54 AM   #3
drb1025's Avatar
City: Bellevue, WA
Country: USA
Vessel Name: Fiddler
Vessel Model: DeFever 46
Join Date: Oct 2012
Posts: 595
I have an FCI watermaker and the manual states that the high pressure valve should be open (no pressure) when flushing with fresh water. It runs for a minimum of 5 minutes and can be set to run longer.
drb1025 is offline   Reply With Quote
Old 07-17-2018, 10:27 AM   #4
Ken E.'s Avatar
City: Bellingham WA
Country: United States
Vessel Name: Hatt Trick
Vessel Model: 45' Hatteras Convertible
Join Date: Nov 2016
Posts: 889
The Village VMT unit I have specifies low pressure flush.
Ken E. is online now   Reply With Quote
Old 07-19-2018, 03:25 PM   #5
Veteran Member
City: Gold Coast
Country: Australia
Join Date: Mar 2014
Posts: 31
at the average domestic pressure on most boats 3 minutes is fine. Note you will see water on the product side of the water maker as even at domestic pressure you will have transfer across the membrane.
BPR valve should be backed off completely - no pressure.
Delta Tango is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

All times are GMT -5. The time now is 07:56 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012