Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > Gear and Product Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-16-2018, 08:47 PM   #1
Senior Member
 
rayza's Avatar
 
Join Date: Jan 2018
Posts: 125
Gray Water w/ Reverse Osmosis?

Thinking of doing some extended boondocking next summer, and looking to do some modifications prior to this, first of all being solar. Next I am looking at a composting toilet.

I was wondering if anybody has hooked their gray water into a reverse osmosis system. Pump out the gray water, pass it through a sediment filter that can be emptied out, possibly a carbon filter, and then finally reverse osmosis feeding back into the freshwater tank?

Would love to hear the nays and yays of doing this if it is even possible or somebody has tried it.
__________________

rayza is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-16-2018, 09:19 PM   #2
Senior Member
 
saddlesore's Avatar


 
Foretravel Owners Club
Join Date: Apr 2016
Location: Salem,Orygun
Posts: 2,798
JMHO...
Solar.....
Yes if you can..(but they do have limitations even if you go overboard with battery banks.
Compost toilets systems.....
I am not a big fan of the idea.... manually removing/servicing the solid waste is not a fun thing to be doing..
AND...... just where do you propose to dispose of that "solid/ composted" waste???
Human waste is a bio/hazmat designated material.... and most if not all areas in the US have strict rules for disposal..
WAY more trouble than it is worth..
also don't expect to sell your RV after the conversion...as most prospective purchasers will not be willing to buy it and then have to convert it back to the factory layout..
This also applies to the propane fired "turd burners"
__________________

__________________
Foretravel with tag axle.
retired truckdriver with 5m miles
Orygun Native
saddlesore is online now   Reply With Quote
Old 06-16-2018, 10:09 PM   #3
Senior Member
 
rayza's Avatar
 
Join Date: Jan 2018
Posts: 125
The swap would be pretty easy, and putting it back just as easy but I don't plan on selling it anyway.

As for disposing of the poop/compost, I can find no regulations about throwing it away in the trash in a compostable bag. I throw my dogs poop in a trashcan every day (and so does everyone I know) and I'm pretty certain that big dude poops more than I do. By the time I would dispose of it, it would already be respirated and starting the process of composting.
rayza is offline   Reply With Quote
Old 06-19-2018, 08:37 AM   #4
Senior Member
 
Outdoors RV Owners Club
Join Date: Mar 2016
Posts: 615
I am guessing that the goal you’re trying to accomplish is extending your boondocking time via the composting toilet and recycling the grey water. I wonder if the big limiting factor might be solid waste. If you solve the water question and then go with a composting toilet won’t you still have trash to dispose of? I know you might be able to burn some but not everything. We can go two weeks pretty easily if we are reasonable with water use especially showers but we always have more trash than we want. Is the expense worth the return? How big are your tanks? How many people in your party?
__________________
Creekside 23 DBS
2017 Ram Cummins 2500
Soggy side of Oregon
Off Road is offline   Reply With Quote
Old 06-20-2018, 01:33 AM   #5
Senior Member
 
MtnTrek's Avatar
 
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,209
A misconception about RO membranes is that they are efficient. In fact they waste about half of the input water which is expelled through the "brine" port otherwise the cycles of concentration within the housing increases dramatically, lowering product quality and volume. Plus, premature fouling of the expensive membrane pores quickly. Can't imagine the pre-filters would last very long either. We order nominal .6 micron charcoal block type wholesale by the dozen. Not cheap.

Point two, the RO membrane require adequate fluid pressure to operate properly. 50-60 psi as a minimum, 100psi near ideal. Gravity feed won't cut it, so plan on a booster pump. [Desired volume x 24 hrs. @ 75 psi =GPD, [12DC (120VAC)x Amps = watts]

We run a 90 Gal per day @ 100 psi RO unit, [120VAC x 6A. booster] which might, almost fill the 100 gal. holding tank over-night with adequate CG pressure. Potable water in that is.
You might want a dozen survival ceramic drinking straws in your bug-out bag for that grey water smoothie. Or one of those Prison Planet* tabletop model filters.

Most wilderness' do best with runs to a spigot and a 50 Gal bladder in their truck bed, low pressure high volume transfer pump, and a couple Blueboys.

Best of luck
__________________
J & J, DRV Suites ES-38RSSA #9679
GM Denali, 3500HD-Max, 4x CC, 8' DRW,
EZGo-TXT, Yamaha-G22E
MtnTrek is offline   Reply With Quote
Old 06-20-2018, 10:43 AM   #6
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 1,914
Before installing a composting toilet watch this video
__________________

__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L
Isaac-1 is offline   Reply With Quote
Reply

Tags
water



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help installing Reverse Osmosis Water Filter whole house system emanofoz Monaco Owner's Forum 22 01-08-2016 08:26 AM
Whole 'coach' reverse osmosis water system questions tednruthy Newmar Owner's Forum 13 03-16-2015 09:15 AM
Reverse Osmosis Water Purification D Lindy Boondocking 5 11-13-2013 01:58 PM
Reverse Osmosis Water System Oemtech MH-General Discussions & Problems 7 04-28-2007 03:46 PM
Reverse Osmosis water filter under kitchen sink? LK23 Winnebago Industries Owner's Forum 10 03-24-2006 12:40 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.