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Thread: Constant backwashing

  1. #21
    Daihonmei PapaBear's Avatar
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    Quote Originally Posted by Koiski View Post
    No, i am guessing its a lot do you know?
    If you know your local rate per kwh (it should be on your last bill) you can use this calculator to give you the bad news... At my home that would come to about $140 per month.
    The Water Garden Pond Pump Operation Cost Calculator

  2. #22
    Fry
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    Apr 2011
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    Using the cost calculator, my pump cost $78.80 per month

    Here are the water test results:

    pH : 8.5
    gH : 22
    kH : 4
    NH4/NH3 : 0.5
    NO2 : 0
    NO3 : 10
    PO4 : 0.25
    Not sure what that all means? I need to read up.

  3. #23
    Daihonmei PapaBear's Avatar
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    Quote Originally Posted by Koiski View Post
    Using the cost calculator, my pump cost $78.80 per month

    Here are the water test results:

    pH : 8.5
    gH : 22
    kH : 4
    NH4/NH3 : 0.5
    NO2 : 0
    NO3 : 10
    PO4 : 0.25
    Not sure what that all means? I need to read up.
    It means your water is hard as stone, your kH is reasonable, your phosphates are a tick high (and probably rising), and your biofiltration is making a marginal attempt to establish itself, but not doing a bang up job of it...

  4. #24
    Fry
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    Quote Originally Posted by PapaBear View Post
    It means your water is hard as stone, your kH is reasonable, your phosphates are a tick high (and probably rising), and your biofiltration is making a marginal attempt to establish itself, but not doing a bang up job of it...
    Thanks

    What in the water data indicates that the "biofiltration is making a marginal attempt to establish itself"

  5. #25
    eds
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    Sansai
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    Quote Originally Posted by Koiski View Post
    Thanks

    What in the water data indicates that the "biofiltration is making a marginal attempt to establish itself"
    Well there's ammonia but no nitrite and a small nitrate reading so that suggests that there are some bacteria converting some ammonia into nitrite and then nitrate.

    Either way it's nowhere near enough to keep koi with. Have you looked at some proper koi filters you can purchase such as a nexus 300/310? One of these plumbed in and with a decent, low wattage pump would be a significantly better option than what you seem to have now.

  6. #26
    Daihonmei PapaBear's Avatar
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    Quote Originally Posted by Koiski View Post
    Thanks

    What in the water data indicates that the "biofiltration is making a marginal attempt to establish itself"
    The partial conversion of Ammonia to Nitrite to Nitrate. Your Ammonia levels are still too high, which will become problematic if the water warms up. Ammonia toxicity rises with pH and Temperature due to the shift from a "fixed/bound" state to a "free" state. Free ammonia is a toxic irritant that can burn their gills and make respiration difficult. It also has a negative impact on their skin and organs.

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