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  1. #1

    Water evaporates

    Hi,

    during this hot weather what would be the acceptable loss by evaporation before I start thinking that I have a leak?

    many thanks

    Alan



  2. #2
    Senior Member Rank = Sansai richythepom's Avatar
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    Hi,
    It depends on lots of factors - pond surface area, exposure to direct sun vs shade throughout the day, temperature, humidity, use of waterfalls etc.. As a catch-all, even in this weather - I'd suggest that if it's a centimetre or more a day, I'd probably start considering a leak.
    It's worth tracking over a week - measure the drop at the same time each day and see what happens.
    If it is a leak - it may well be a simple issue in the pipework, rather than the 'main pond' itself (this happened to me recently with a broken UV quartz!).
    Also - if it does turn out to be a minor leak and you're not on a water meter (and it's relatively minor), you could consider a 'trickle in - trickle out' top-up system, potentially eliminating any need for a regular water change.
    Hope this helps.

  3. #3
    I don’t think you have to worry about leaks,i`m topping up about 50mm every day at the moment due to temperatures,two 2 inch air stones,a waterfall & an Oase profidrum filter & this on a 2.500 gal.pond
    Ray.

  4. #4
    Senior Member Rank = Sansai gt350's Avatar
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    I have a indoor (conservatory) pond 900 gallons and had to top up 50 gallon after approx 3 or 4 weeks,but it gets to over 11 most days even with windows open.water temp is 75 f

  5. #5
    Quote Originally Posted by Matsuba View Post
    I don’t think you have to worry about leaks,i`m topping up about 50mm every day at the moment due to temperatures,two 2 inch air stones,a waterfall & an Oase profidrum filter & this on a 2.500 gal.pond
    Ray.
    Hi Ray,

    thats a relief, my pond is 2800 gal, topped up 50mm today, pond is also in direct sun all day.

    many thanks

  6. #6
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    50mm/day sounds like a leak to me My fully in sun pond with a waterfall and a big drum going off every 8 min looses less than that!
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

  7. #7
    I might have been a bit exaggerating,i`m a imperial man,not really metric.Overnight, it loses no water but when the sun hits it,it probably drops an inch by the evening.I also forgot to mention.that there is a 10ft by 2 ft bank of very big plants at one end of the pond,these remove water as well as nitrates,The Koi love them!!!.

    Ray.

  8. #8
    Of course,these probably don`t help evaporation but the Koi love browsing around them & doing the odd bit of gardening.

    Ray.


    20180726_123403.jpg

  9. #9
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Mines in full sun all day every day, and it doesn't drop any noticeable amount at all between partial water changes.

    I'd guess at worst it loses 1cm every 2 to 3 days of full sun.

  10. Thanks Ajm Thanked / Liked this Post
  11. #10
    Found a small hole on one of the folds, can I use a bicycle puncture repair kit on this?

  12. #11
    as a keen cyclist I'd be very surprised if it works, particularly on a fold. They're not designed for under water use!
    I'd try pond sealant and a piece of liner.

  13. Thanks freddyboy Thanked / Liked this Post
  14. #12
    MS290 is like a black rubbery sealant that would probably be worth a go.


    Sent from my iPhone using Tapatalk

  15. Thanks freddyboy Thanked / Liked this Post
 

 

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