Water storage - clear or black jerry cans?

Submitted: Wednesday, Nov 04, 2009 at 11:17
ThreadID: 73519 Views:8620 Replies:11 FollowUps:2
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I have a clear Willow water jerry can but am now wondering if the black ones are better for long-term water storage due to algae growth.

Or is it just the case of filling the jerry can to the brim thereby excluding as much air as possible and even storing it somewhere out of the light?
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Reply By: Member - Tony V (NSW) - Wednesday, Nov 04, 2009 at 11:54

Wednesday, Nov 04, 2009 at 11:54
The suggestion is that water storage should not be in clear containers as sunlight can affect the water, promote algae or bacteria growth.

How long are you going to store the water? And I suppose why?

There are a number of good web sites that will be better to read through
Storable foods
How Stuff works
Long Term water storage

Google search page


AnswerID: 389939

Reply By: Shaker - Wednesday, Nov 04, 2009 at 13:05

Wednesday, Nov 04, 2009 at 13:05
The Khaki coloured ones from Aussie Disposals are excellent.

AnswerID: 389945

Reply By: garrycol - Wednesday, Nov 04, 2009 at 13:27

Wednesday, Nov 04, 2009 at 13:27
Potable (food grade) water plastic jerries are blue.

Garry
AnswerID: 389948

Follow Up By: Shaker - Wednesday, Nov 04, 2009 at 14:02

Wednesday, Nov 04, 2009 at 14:02
Some are, some aren't!

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Follow Up By: Member - John and Val - Wednesday, Nov 04, 2009 at 20:36

Wednesday, Nov 04, 2009 at 20:36
We have just carried 25l of tank water for 20,000km and 4 months - from home and back again in a clear square plastic container. It originally had wine in it! We have been using these containers for years without any problems - but they travel under our bed in the back of Troopy so they are out of the light and reasonably cool.

For our everyday water containers we use 10 ordinary 3 litre juice containers. They are easy to fill and to use, and the big plus is that if you have to take some poor quality water on board you can keep it separate from your bulk water supply, and ditch it when better water is available. But these too travel in a cool(ish) and dark place.

Filling a bottle right up doesn't really reduce the amount of oxygen in the water, because there will be air dissolved in the water.

Val
J and V
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Reply By: Member - Timbo - Wednesday, Nov 04, 2009 at 13:56

Wednesday, Nov 04, 2009 at 13:56
I've never had a problem with storing water in clear(ish) containers for my trips - of course I put fresh water in before I leave home, and it's not on the top of the load so probably not in direct sunlight most of the time.

My biggest concern with using a black jerry for water is that black jerries are most commonly used for fuel and you should always reduce the possibility of confusing the two!
AnswerID: 389959

Reply By: Member - Tony S (WA) - Wednesday, Nov 04, 2009 at 15:18

Wednesday, Nov 04, 2009 at 15:18
We use the square 20 litre black hydrochloric acid containers. Wash out well before use. Dont fall over and are solid too.The other thing is you can normally get them for just about nix from hardware stores - not Bunnings!
The rig

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Reply By: handy - Wednesday, Nov 04, 2009 at 15:22

Wednesday, Nov 04, 2009 at 15:22
the clear ones dont last as long as the black one ethier. cheers
AnswerID: 389968

Reply By: Member - Phil G (SA) - Wednesday, Nov 04, 2009 at 15:38

Wednesday, Nov 04, 2009 at 15:38
I've used the blue willow 20l jerries for the past 20 years, and not had a problem with algae. The good thing is that you can easily see the water level.
AnswerID: 389972

Reply By: Rangiephil - Wednesday, Nov 04, 2009 at 15:46

Wednesday, Nov 04, 2009 at 15:46
I use the blue ones , but must admit I always run a file over the lip of the thread to stop leaks.
The black ones should be AOK as they would be HDPE which is the same as what many caravan water tanks are made of.

Regards Philip A
AnswerID: 389974

Reply By: Member - Duncs - Wednesday, Nov 04, 2009 at 19:14

Wednesday, Nov 04, 2009 at 19:14
Mine are yellow.

Duncs
AnswerID: 389997

Reply By: equinox - Wednesday, Nov 04, 2009 at 20:54

Wednesday, Nov 04, 2009 at 20:54
I can't really comment about algae or water quality but can comment on Jerry Quality.

I bought 10 Blue Willow Jerries for a trip in 2003 and took them on subsequent trips. None at all have survived due to fatigue or sun damage.

I now have (and will purchase more for next year) the Green Army Style ones, which look and feel stronger than the blue ones, pretty much the same quality as that which is used for fuel.

Time will tell if they stand the test of time.

I also tested out two flexible blue containers last year (by forced choice). These are good for one trip only in back of ute conditions.

Cheers
Alan


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AnswerID: 390013

Reply By: Maîneÿ . . .- Thursday, Nov 05, 2009 at 11:38

Thursday, Nov 05, 2009 at 11:38
I used 20Lt clear plastic containers for a few years, till they developed fatigue cracks in the top area, so I dumped them, they were in sunlight at some times.
I believe all under caravan/campertrailer water containers are black?

Their colour may have some relevance, either better quality materials or to avoid light ingress, to stop algee maybe?

Maîneÿ . . .
AnswerID: 390057

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