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Thread: Hi

  1. #1

    Hi

    hi all, I'm new to the forum and wanted to say hello



  2. #2
    Welcome to the Forum, be good to know if you have a pond, will be building one etc.

  3. #3
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    Hi Richard
    welcome to the forum

  4. #4
    Hi thanks for the welcome.
    Yes I built a pond 18 months ago 9ft x 5ft x 4ft deep approx 5000 litre, 1 1/2 ft below ground 2 1/2 ft above ground.
    Started with basic cheap filter system but after 6 months it wasn't up to the job ( total miss calculation on my part ).
    Changed to a laguna pressure flo 10000 system which was great but now added laguna pressure flo 14000 which is running inline ( as recommended by a friend who has koi ) as water colour was very dark and as fish are getting bigger to help with filtration, but to be honest although water quality tests are fine I do test at the same time and day each week, the water is still quite dark. I bought my koi at 2 inches long and now most are between 5 to 9 inches long so they seem to be happy and growing well, its really just the water colour that's causing me a headache

  5. #5
    Quote Originally Posted by Richard bates View Post
    Hi thanks for the welcome.
    Yes I built a pond 18 months ago 9ft x 5ft x 4ft deep approx 5000 litre, 1 1/2 ft below ground 2 1/2 ft above ground.
    Started with basic cheap filter system but after 6 months it wasn't up to the job ( total miss calculation on my part ).
    Changed to a laguna pressure flo 10000 system which was great but now added laguna pressure flo 14000 which is running inline ( as recommended by a friend who has koi ) as water colour was very dark and as fish are getting bigger to help with filtration, but to be honest although water quality tests are fine I do test at the same time and day each week, the water is still quite dark. I bought my koi at 2 inches long and now most are between 5 to 9 inches long so they seem to be happy and growing well, its really just the water colour that's causing me a headache
    Hey Richard welcome to the forum. When you say water is dark does it look green? And your water tests are ok ie amonia and nitrite? Usually if the water is a dark color first thought would be uv. But as we donít really know the full set up itís hard to say. If you are running uv how many watts are they? And does the pond have any shade in the day? How often are you cleaning the filters. If you have any pictures may help.


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  6. #6
    Hi, ammonia and nitrate, nitrite are fine and water is greenish, but i did use cloverleaf blanket answer 2 months ago and I pump the filters every sunday morning to remove any rubbish and do a 10% water change and use aqua safe to help remove chlorine and total uv is 42 watts, I have a laguna 16500 inwater pump that runs into the 10000 filter then into the 14000 filter

  7. #7
    Quote Originally Posted by Richard bates View Post
    Hi, ammonia and nitrate, nitrite are fine and water is greenish, but i did use cloverleaf blanket answer 2 months ago and I pump the filters every sunday morning to remove any rubbish and do a 10% water change and use aqua safe to help remove chlorine and total uv is 42 watts, I have a laguna 16500 inwater pump that runs into the 10000 filter then into the 14000 filter
    For that size pond 42watts should more more than enough on that size pond. Are they new bulbs as they do loose effect after 6 months? You could try using a filter sock on the return to the pond to see if it picks up some fines but if you say itís green it says to me it got to be uv related. Very odd. Did the cloverleaf do the job for the blanket weed. And if itís two months on that will be out of the system due to water changes so that wonít be making it discoloured if that what you meant.


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  8. #8
    Hi, uv lamps were changed 6 weeks ago, forgot to mention that I put 2 lilies in the pond about 2 months ago and the cloverleaf worked but the sides of the pond are still a bit green but only 1mm thick, i will try a filter sock

  9. #9
    Quote Originally Posted by Richard bates View Post
    Hi, uv lamps were changed 6 weeks ago, forgot to mention that I put 2 lilies in the pond about 2 months ago and the cloverleaf worked but the sides of the pond are still a bit green but only 1mm thick, i will try a filter sock
    What area are you from Richard if someone is local they could view it for ya. Filter socks are always good to have a play with as it shows you whatís getting past your filters


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  10. #10
    The maximum pump size Laguna specify for the 14000 filter is only a 9000 lph pump and your pump is rated at about 16500 lph.

    I think you are trying to pump too much water through the filters and the muck is getting pushed through one filter then through the second filter and then back into the pond.

    I would split the supply to the 2 filters and run them side by side and not if I am reading it right have the pump feeding the 10000 version and then into the 14000 version.

    I know there will be some flow loss but even so I doubt there will be enough to drop it to the max rating of the 14000 version filter let alone the 10000 version filter but the total flow split between the two filters may be more reasonable and then the filters will work better.

    Going by the maximum pump sizes for the 2 filters being 9000 lph for the 14000 filter and 7600 lph for the 10000 filter the pump you have should be about right to run both filters side by side without over working either of them I would have thought?

    Pressure filters aren't the best thing for koi ponds as they don't have enough bio capacity and the stated figures are always way over the top of what they can in reality handle specially when you have a pond with koi in.

  11. Thanks dbs, charco123 Thanked / Liked this Post
  12. #11
    To split the supply you could use something like this -

    https://www.swallowaquatics.co.uk/po...RoCsGQQAvD_BwE

 

 

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