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Painting Water Tanks...

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Sparks

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Jun 2, 2006, 11:10:05 AM6/2/06
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Here is the problem, I have 5 of these...
http://i18.ebayimg.com/03/i/04/5c/fe/3a_1_b.JPG

When they have water in them ,the sun makes the water go green :-(

I also have two 1500l black barrels, these don't suffer from this problem.

So, I though it would be a good idea to paint them!
Off down the road I went, and bought a 400ml can of Hunter Green
"Plasti-kote" spray paint for £5.95

This £5.95 worth of paint didn't even cover one side on one tank!!
..and lots of light was still getting through it anyway...

Any ideas on a better method, or cheaper paint I can use!
(Could I use normal oil based paint, applies with a paint brush?

I do have a compressor and a spray gun (But have not used this yet, and have
no idea what paint I can use, or where to get it either!)

I suppose I could box them in with wood (WBP Ply?)

Thanks for any suggestions!

Sparks...


Chris Bacon

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Jun 2, 2006, 11:36:39 AM6/2/06
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Sparks wrote:
> Here is the problem, I have 5 of these...
> http://i18.ebayimg.com/03/i/04/5c/fe/3a_1_b.JPG
>
> When they have water in them ,the sun makes the water go green :-(


Do they need to look nice?

Sparks

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Jun 2, 2006, 11:24:39 AM6/2/06
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"Chris Bacon" <chris...@thai.com> wrote in message
news:44805b07$1...@newsgate.x-privat.org...

Not really, they are quite hidden away

...although, I don't want to paint them bright pink or something similar!


Sparks

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Jun 2, 2006, 11:24:39 AM6/2/06
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"Chris Bacon" <chris...@thai.com> wrote in message
news:44805b07$1...@newsgate.x-privat.org...

Not really, they are quite hidden away

d...@gglz.com

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Jun 2, 2006, 11:44:43 AM6/2/06
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Do they need to be drinking water? I can see an old hazard label on
them, so perhaps not. A few drops of bleach will supress algae.

Sparks

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Jun 2, 2006, 11:37:34 AM6/2/06
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<d...@gglz.com> wrote in message
news:1149263083....@f6g2000cwb.googlegroups.com...

> Do they need to be drinking water? I can see an old hazard label on
> them, so perhaps not. A few drops of bleach will supress algae.

They are holding rainwater for irrigation - I guess bleach would be a bad
idea for this!?


Chris Bacon

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Jun 2, 2006, 12:00:48 PM6/2/06
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Sparks wrote:
> "Chris Bacon" wrote...

>> Sparks wrote:
>>> Here is the problem, I have 5 of these...
>>> http://i18.ebayimg.com/03/i/04/5c/fe/3a_1_b.JPG
>>>
>>> When they have water in them ,the sun makes the water go green :-(
>>
>> Do they need to look nice?
>
> Not really, they are quite hidden away
> ...although, I don't want to paint them bright pink or something similar!

You could use bitumen emulsion, as used for damp proofing. Brownish gop
that dries black. A coat of two of that should be opaque.... you can get
non-taint bitumen paint, for use inside galvanised water tanks, etc.,
but if you're painting the outside, it won't be needed. Bitumen emulsion
will spoil your brush, though, so buy a 4" one that you only want to use
for that job. You can soften the stuff in paraffin or white spirit if
your brush goes hard. A tenner (ish) for 5 litres.

Sparks

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Jun 2, 2006, 11:58:51 AM6/2/06
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"Chris Bacon" <chris...@thai.com> wrote in message
news:4480...@newsgate.x-privat.org...

Great, sounds like a plan to me!

I assume I would get it in B&Q?


Slick

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Jun 2, 2006, 1:01:16 PM6/2/06
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"Sparks" <postm...@127.0.0.1> wrote in message
news:4480577b$0$658$bed6...@news.gradwell.net...

Box em in a little...painted MDF??


John

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Jun 2, 2006, 2:32:20 PM6/2/06
to

You have two conflicting requirements here. Algae like light and warm.
Painting the tanks black will make them dark but will also absorb more
solar heat. I'm assuming they're outside. Painting them white will keep
them cooler but will let the light in.
You need to make them black and keep them in the shade.
I have to ask, what's the problem with the algae? If the water is only
for irrigation, the plants won't mind.

John

Sparks

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Jun 2, 2006, 2:29:07 PM6/2/06
to

>"John" <johnm...@freenetname.co.uk> wrote in message
>news:1149273140.7...@y43g2000cwc.googlegroups.com...

>
>Sparks wrote:
>> Here is the problem, I have 5 of these...
>> http://i18.ebayimg.com/03/i/04/5c/fe/3a_1_b.JPG
>>
>> When they have water in them ,the sun makes the water go green :-(
>>
>> I also have two 1500l black barrels, these don't suffer from this
>> problem.
>>
>> So, I though it would be a good idea to paint them!
>> Off down the road I went, and bought a 400ml can of Hunter Green
>> "Plasti-kote" spray paint for £5.95
>>
>> This £5.95 worth of paint didn't even cover one side on one tank!!
>> ..and lots of light was still getting through it anyway...
>>
>> Any ideas on a better method, or cheaper paint I can use!
>> (Could I use normal oil based paint, applies with a paint brush?
>>
>> I do have a compressor and a spray gun (But have not used this yet, and
>> have
>> no idea what paint I can use, or where to get it either!)
>>
>>
>> Thanks for any suggestions!
>>
>> Sparks...

> You have two conflicting requirements here. Algae like light and warm.
> Painting the tanks black will make them dark but will also absorb more
> solar heat. I'm assuming they're outside. Painting them white will keep
> them cooler but will let the light in.

Maybe I need to paint the black, then white!

> You need to make them black and keep them in the shade.

Can't do that, because they look ugly, and are currently out of sight!
Moving them will bing them into sight :-(

> I have to ask, what's the problem with the algae? If the water is only
> for irrigation, the plants won't mind.
>

The plants won't, but my micro irrigation drippers will, as will the filters
I have in the pipeline.

Sparks...


Guy King

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Jun 2, 2006, 3:16:56 PM6/2/06
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The message <1149273140.7...@y43g2000cwc.googlegroups.com>
from "John" <johnm...@freenetname.co.uk> contains these words:

> I have to ask, what's the problem with the algae? If the water is only
> for irrigation, the plants won't mind.

I expect it'd gunge up (technical term) the nozzles/drip-pipe etc.

--
Skipweasel
Pay no attention to that man behind the curtain.

Owain

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Jun 2, 2006, 3:14:31 PM6/2/06
to
Sparks wrote:
>>Do they need to be drinking water? I can see an old hazard label on
>>them, so perhaps not. A few drops of bleach will supress algae.
> They are holding rainwater for irrigation - I guess bleach would be a bad
> idea for this!?

Potassium Permanganate is used for water purification (or it was
according to my Boys Own Intrepid Adventurers' Survival Guide, as well
as for dyeing snow for SOS markers) and would turn the water a pretty
purple colour.

Potassium is good for plants isn't it?

Owain


Aidan

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Jun 2, 2006, 5:05:44 PM6/2/06
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Sparks wrote:
> <d...@gglz.com> wrote in message
> news:1149263083....@f6g2000cwb.googlegroups.com...
Wrap them in the roofing felt that you'd use for the top layer of a
flat roof. Tie it on with galvanized wire. Put some insulation
(polystyrene shet?) under it if you're worried about the temperature.
Algae will grow in water in any translucent container exposed to
daylight..

Pete C

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Jun 4, 2006, 10:25:02 AM6/4/06
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On Fri, 2 Jun 2006 16:10:05 +0100, "Sparks" <postm...@127.0.0.1>
wrote:

Hi,

Black DPC is totally lightproof and IME weatherproof too. It comes in
4m widths, if you're lucky a local shed or BM might sell it by the
metre. I bought a few metres from Homebase, but it was a few years
back.

cheers,
Pete.

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