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  1. #21
    Extreme Koi Member Rank = Adult Champion NickK-UK's Avatar
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    Hmm I'd steer clear of paddle flow meters (the bio growth causes problems).. go for ultrasound and it's probably cheaper too.
    14000l, my mutts: Chargoi (2010), Doitsu (2022), Tancho (2022), Kujaku (2022), Hi Utusri (2022)

  2. #22
    Extreme Koi Member Rank = Kyusai Scamp's Avatar
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    Quote Originally Posted by NickK-UK View Post
    Hmm I'd steer clear of paddle flow meters (the bio growth causes problems).. go for ultrasound and it's probably cheaper too.
    Agreed mine needs de-scuzzing every so often..having said that they really are great for taking guesswork out of flow rates, if you can’t easily bucket test..

  3. #23
    Extreme Koi Member Rank = Adult Champion NickK-UK's Avatar
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    Solum 16 + std bio owner. The setup has 2x 110mm for the bio outlets too. The bio is very happy running at 100% on the pump (20K).

    Running pump fed through 1.5” pipe. It will happily run at 10,000lph on the dial.. however how much water is flowing with bio film, it’s likely to be lower than the % gives. The power consumption runs a 40-43W, if blocked the pump drops to 38W. I've now taken to cleaning my pump out (it's currently in the pond) when the reading starts to move below 40W and the difference in rate over the water fall is visible to me.

    The 25 has a physically larger drum compared to the 16 rather than simply changing the flow rate of the mesh.

    This business I think shows how difficult it is to define the rates of filters.

    * Bio film and hard water scale build up reducing the micron size
    * Waste mass in grams per m3 varies between pond (organic matter, algae etc), stocking and feeding regime
    * Waste of differing sizes vs mass of waste (leaves vs poop) leaves block more drum.
    * position of the sensor - a larger drop, the drum yo-yo effect of water and the 'waste surge' effect causes more flushing but it also varies the wet mesh area providing filtering.
    * Varying rate of pumps and kit based purely on the designs, bio film inside the pipes.

 

 
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