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Old 02-25-2012, 06:25 PM   #1
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Healthy/Green Fresh water storage tank

Has anyone experimented with this? I was thinking a custom made stainless tank, or maybe bpa free food grade plastic?
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Old 02-25-2012, 06:53 PM   #2
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Quote:
Originally Posted by SteelyDan
Has anyone experimented with this? I was thinking a custom made stainless tank, or maybe bpa free food grade plastic?
Sorta curious...what makes my good old fashion standard RV fresh water tank non healthy/green?
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Old 02-25-2012, 07:01 PM   #3
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Almost all clear food grade plastic contains bisphenol a, which is pretty nasty stuff. Plastic that is around 30 year old will most likely be starting to deteriorate at this point as well.
A mod like this definitely isn't for everyone, but considering the lengths we're going to make this a health conscious machine, I figured its worth investigating.
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Old 02-25-2012, 07:11 PM   #4
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I intend to put a kayak hatch in mine so I have the ability of clean it really well. Most people don't drink from their tank do they? Read this thread about the need for a way to clean

http://www.airforums.com/forums/f443...tch-69584.html

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Old 02-25-2012, 07:23 PM   #5
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Quote:
Originally Posted by SteelyDan
Almost all clear food grade plastic contains bisphenol a, which is pretty nasty stuff. Plastic that is around 30 year old will most likely be starting to deteriorate at this point as well.
A mod like this definitely isn't for everyone, but considering the lengths we're going to make this a health conscious machine, I figured its worth investigating.
Ok, I see. How much of a real problem do think this really is? I have to assume my new tank I installed in my home build toy hauler last summer is less dangerous then the old tank in my Airstream? What about the water pipes and fixtures? What are you going to do to ensure the actual water itself is pure that you put in the tank?
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Old 02-25-2012, 07:30 PM   #6
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We're planning on a heavy duty water filtering system, and on replacing all the fresh water piping with either metal or toxin free plastic.
It's hard to say how much of a problem it is. It's the worst when things heat up outside and the plastic gets a bit softer, which leads to leaching. I think its a safe assumption that the new tank you installed is "healthier" then the old plastic in your AS.
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Old 02-25-2012, 07:33 PM   #7
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@reiner girl, Most people drink from the city supply, but we plan on doing a good deal of boondocking, and need as much portable water as we can get! Does anyone have grey water recycling systems in their RV? That'd be pretty cool!
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Old 02-25-2012, 07:34 PM   #8
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I understand polypropylene is approved safe for drinking water which is what H2O tanks are made of. I put one in my vintage Boles Aero along with an under sink water filtration system just for drinking.
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Old 02-25-2012, 08:01 PM   #9
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SteelyDan, dadstoy:

If you read the thread below, as suggested by reinergirl, - top to bottom - you'll get a sense of what the problems can be with the 30+ year old molded plastic fresh water tanks in Airstreams:

http://www.airforums.com/forums/f443...tch-69584.html


'Best you carry bottled water for drinking SteelyDan (Aluminum Trailer Man). I think you'll find that by the time your tank serves the toilet, dishes and showers there is going to be very little, if any, left for drinking.

I never drink from the tank but I don't want to shower in crud-filled water either. You can see in the attached thread what scuzzy stuff can accumulate there.



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Old 02-25-2012, 08:35 PM   #10
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Quote:
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SteelyDan, dadstoy:

If you read the thread below, as suggested by reinergirl, - top to bottom - you'll get a sense of what the problems can be with the 30+ year old molded plastic fresh water tanks in Airstreams:

http://www.airforums.com/forums/f443...tch-69584.html

'Best you carry bottled water for drinking SteelyDan (Aluminum Trailer Man). I think you'll find that by the time your tank serves the toilet, dishes and showers there is going to be very little, if any, left for drinking.

I never drink from the tank but I don't want to shower in crud-filled water either. You can see in the attached thread what scuzzy stuff can accumulate there.

Sergei
Sergei, I took a look at your link. Thanks for the heads up!
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Old 02-25-2012, 08:52 PM   #11
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You can get a good carbon filter to run water through that will get most of the organics out of it. It is best to clean your fresh water tank with bleach prior to using it. I am with the bottled water for drinking crowd. You can also get water filters that will allow you to filter water out of a stream and drink that. I would think the water out of the stream would be more of a challenge to clean than what comes out of your tank. It is really hard to get away from plastics. Plumbing is made from plastic, PVC, Polyethylene, Polybutyl, etc. Copper pipe even has lead solder many times. There are rubber gaskets in your fawcets. Bottled water even comes in plastic. If you are paranoid then run everything through a carbon filter or if you are really paranoid you can get a reverse osmosis filter with a carbon prefilter.

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Old 02-26-2012, 09:40 PM   #12
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I would recommend a good flouride filter as well. There are more negative results from flouride usage being absorbed into the skin, aside from the BPA
In plastic.
I use a 3 stage whole house filter Inline for everything. Around $300.
Worth it.
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Old 02-26-2012, 10:33 PM   #13
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I don't know of any statistics on this but I think the greater danger is an acute one from contamination that one might pick up from a poorly handled hose, or just being a little careless when filling a tank. We use a filtered hose adapter and take great care where we fill up and how we do it. And always protect the hose by attaching the male and female end to each other to protect them from contaminants. Keep the tank clean and your likelihood of injesting something bad will be greatly reduced.
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Old 02-27-2012, 07:48 AM   #14
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A little house hold bleach will take care of any biohazards. You can get some pool test strips to test for parts per million on Chlorine. You want something like 1-3 ppm. You can figure out how much chlorine to add using the strips as a guide. A carbon filter will get the bleach and Flouride out of the water. Even if your take really good precautions, stuff will grow in the tank unless you sterilize is periodically. There is some Chlorine in tap water that will help keep things clean if the tank is used often. So get in the habit of sterilizing before going on a trip.

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