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Old 02-25-2018, 11:37 AM   #1
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Completely off Grid Water Filtration

So Iím designing my water system, and I want to be able to stay off grid for long periods.
I was planning on using a 3 stage water filter and a UV filter.
I would put the 3 stage filter, the UV Filter, and the pump, on the intake end of the system so that my 100-300 feet of food grade hose doesnít get dirty and the pump works at its best.
Has anyone done this?
Is there any legal issues with pulling 200 gallons of water out of a river or stream?

On a side note
Is it ok to dump gray water tanks off grid?
I donít see why not, assuming we are using biodegrade-able soaps, etc.
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Old 02-25-2018, 11:53 AM   #2
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Recent discussion on the disposal of grey water indicate that if it's in a tank it's illegal to dump grey water anywhere but in an approved disposal area. However if you bath in a bucket then throw out the same water it is somehow less illegal.

Points sighted are dishwashing areas in camp grounds where nearly everyone washes their dishes and the grey water simply runs on the ground.

Basically if the grey water runs through plumbing in your vehicle it's illegal to dump on the ground. A bucket of dishwater, not so much. Of course in a fancy smansy campground they aren't going to like seeing you dump anything.
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Old 02-25-2018, 01:05 PM   #3
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Want to do the same thing. Have an inlet from a fresh water source that goes through a few filters before getting in my fresh water tank. Then having a final filter under the sink for my drinking water faucet.

Interested in the filter setup you decide.
Havent done my research on that part yet.
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Old 02-25-2018, 01:06 PM   #4
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Originally Posted by dspizzle View Post
Want to do the same thing. Have an inlet from a fresh water source that goes through a few filters before getting in my fresh water tank. Then having a final filter under the sink for my drinking water faucet.



Interested in the filter setup you decide.

Havent done my research on that part yet.


Iíll let you know
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Old 02-25-2018, 01:16 PM   #5
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I have done very much what you are describing.

I collected rainwater and, in emergency circumstances, may have pumped some water from a creek.

I started out with a 3 stage filter with a UV filter for the final stage. It worked but, at times, the filter cartridges plugged up quickly. The system change that made it work was the addition of a flushable sand filter as the first stage.

I used that system for about six years. The last three years was full time.
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Old 02-25-2018, 03:37 PM   #6
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I've also struggled with this filtration issue. From what I've read using canister filters that remain wet are a breeding ground for whatever is in the water.

I use a few ounces of 30% H2O2 in my tanks which oxygenates the water and keeps it from smelling like a fish tank. I'm on spring water in the mountains but there is always a certain amount of organic matter that comes from springs. I notice particulate matter that settles out in the bottom of my tank using this method. The peroxide kills the organic matter and it settles out, so once in a while I rinse my tank.

UV is good but you’re still drinking the dead organisms from the water. Reverse osmosis is probably the best filtration method, but also the most wasteful.

Beyond that the only thing I’ve come up with is distilling your own water. There are commercially available water stills, but you can also use an old pressure cooker or something similar to evaporate and condense the water. Very popular these days because you can use any water.
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Old 02-25-2018, 04:03 PM   #7
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I've also struggled with this filtration issue. From what I've read using canister filters that remain wet are a breeding ground for whatever is in the water.

I use a few ounces of 30% H2O2 in my tanks which oxygenates the water and keeps it from smelling like a fish tank. I'm on spring water in the mountains but there is always a certain amount of organic matter that comes from springs. I notice particulate matter that settles out in the bottom of my tank using this method. The peroxide kills the organic matter and it settles out, so once in a while I rinse my tank.

UV is good but youíre still drinking the dead organisms from the water. Reverse osmosis is probably the best filtration method, but also the most wasteful.

Beyond that the only thing Iíve come up with is distilling your own water. There are commercially available water stills, but you can also use an old pressure cooker or something similar to evaporate and condense the water. Very popular these days because you can use any water.


If Iím pumping out of a stream or river
How about a 3 stage filter to a reverse osmosis system. I donít care about waste. The whole setup would be ďportableĒ and near the water source. So any cast off would go right back.
As far as keeping the filters wet.
Can they be dried out after using to prevent this issue?
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Old 02-25-2018, 04:04 PM   #8
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Hmm reverse osmosis production is super slow
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Old 02-25-2018, 04:52 PM   #9
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Osmosis and distillation systems are something you just leave running throughout the day. Distillation is the least wasteful and the simplest.

During cold temperature it's easy to set up a large pressure canner so that the steam goes through a condensation tube and into a collection container. Having a distillation system working would also add to the heat inside the bus.

I usually have a 2 gallon pressure cooker on my hotplate that I leave on low most of the time, yes because I'm on the grid. The heat from the pressure cooker is significant inside the bus without it adding humidity from cooking.

I haven't started distilling water yet but it ticks all the boxes as far as clean drinking water while traveling.
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Old 02-25-2018, 07:03 PM   #10
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I used a 3-stage filter and a UV light for the discharge filtration for a rain water collection system. Works great as long as the water isn't mucky. A stream or lake with water that doesn't kill the wildlife would be fine, though drink at your own risk.
A local lake here gets enough toxin from blue-green algae blooms to kill those who take a drink. I don't know how you get rid of that.
The RV Water Filter Store is where I bought my filtration unit.
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