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 *Evaporation*

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Anver

Anver

Posts : 121
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Join date : 2008-10-09
Age : 61
Location : lenasia gauteng

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PostSubject: *Evaporation*   *Evaporation* EmptyWed Jun 23, 2010 9:07 pm

Hi Guys

I have noticed in the last 2 to 3 weeks that i have been losing water at a rate of about 1.5 cm in a 24 hour period.
The pond gets around 6 hours of sunlight and is 25000lt in capacity.
Being mid winter and pond temp 10 degrees i find it strange to loose that much water. If it was mid summer a different story.
My question is can you get *evaporation* in winter, is it normal ,and is anyone else also experiencing water loss in winter?

Thanks
Anver
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Dave



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Join date : 2007-11-04

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyWed Jun 23, 2010 10:15 pm

Hi Anver,


I also loose quite a bit of water in winter, due to evaporation
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Neville

Neville

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Age : 76
Location : Krugersdorp

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyWed Jun 23, 2010 11:47 pm

Hi Guys,

Me too, but I think it is not evaporation it probably is a small leak as a result of the cold weather.

Evaporation and warm weather go hand in hand. Easy to test though, just fill a bucket to a line, place it by the pond, and check it out. Will do mine tomorrow.

Another posting by Einstein lol!

Sometimes we just get too technical and miss the small things
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vossie

vossie

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 8:27 am

my 25000lt verloor ook soveel maar ek dink dis by my waterval as ek net die gewone shoots aan het verloor ek meskien `n halwe sentimeter
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Cliff

Cliff

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Age : 46
Location : JHB

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 8:43 am

Hi Oom Neville,

Surely just leaving a bucket of water would not yield the same result as a pond that has a waterflow via a waterfall feature?

The water return would aid in evaporation, where I suspect a free standing bucket has nothing similar you will not get the same result.....maybe do a submersible pump flowing over a tile back into the bucket if you want something more accurate........get surface area also counts....interesting to see tho.
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Anver

Anver

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Age : 61
Location : lenasia gauteng

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 9:56 am

Hi guys

Thanks for the replies so far.
It makes me feel a little at ease as the last thing i want is to find that i now have to look for a leak.
I will still monitor and see if there is changes as the weather patterns also change .
Will keep you guys posted.
Anver
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wayneb
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wayneb

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 2:21 pm

That is a leak. With our current cold weather one would not loose that amount of water due to evaporation.

You may loose 1.5-2cm of water on a warm sunny day with a wind blowing but not in winter. There is enough moisture in the air to prevent evapuration.

lol, do you loose water on a rainy day aswell. Razz

What is the length and width of the pond?
Length x Width x cm dropped x 1000 = liters of water missing.

Now go and calculate the amount of water missing and think about it...if its 100l + then there is no way its evaporation...

Splashing water does not = evaporation. Splashing water = a leak

In my pond 6.5m x 3m x 0.01m x 1000 = 195 Liters.....thats alot of water to loose to evaporation.
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ogidni

ogidni

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 4:57 pm

All I have to say is be-friggin-careful.......

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and be ready for a worst case scenario if one is coming. Pond drained out completely in about 2 days. From 2 seperate leaks that came from who knows where......
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Neville

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 5:10 pm

Hi Ogidni,

I tend to agree with you, Found that the cold weather opens up those fine cracks or places where only the sealer was doing the sealing.

Unfortunately I doubt if it will seal itself again when it gets warmer.

Will have to wait and see
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Jack Bach



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Location : Montana, Pretoria

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 5:11 pm

Hi Martin
That's serious. Have you at least found the leaks? I gather that you have because you refer to "two". Structural or plumbing?
..and what have you done with your nice fish?
Regards
Jack
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ogidni

ogidni

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 6:12 pm

Hi Jack

The one leak is a cracked pipe between the settlement chamber and the filter system. I thought that was the main problem till the pond itself drained out completely. Thank goodness its not a major structural problem and just a leak around the bottom drains. The water proofing is peeling off around it.

The fish are in a porta pool at the moment.
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Jack Bach



Posts : 136
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Join date : 2009-06-17
Location : Montana, Pretoria

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyThu Jun 24, 2010 6:29 pm

Hi Martin
Well, it could have been worse. Very nice pond you have there.
Jack
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Dave



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Join date : 2007-11-04

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PostSubject: Re: *Evaporation*   *Evaporation* EmptyMon Jun 28, 2010 5:21 pm

A little tick don't know if any knows it-Is to use dye and put the dye through every pipe and where to ground is colored. You have a leak

ogidni, that's one big leak Smile
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