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  1. #61
    Quote Originally Posted by koicarpus View Post
    I'm not sure if you've had a pond before Eifion, apologize for telling how to suck eggs.
    So 'head loss' is experienced in gravity fed filters where the water is being pumped from the filter back to the pond.
    People will notice from experience with a Nexus for example, the inner Eazy section is lower than the pond level, and the outer Bio section is even lower while the pump is running.
    Same as people who have barrel filters, from one barrel to the next there will be a decrease in height from barrel to barrel before entering the pond, this is called head loss. This head loss will not equalize all the time the pump is running, all the time your pump is pumping water away from your filter back to the pond, the level of water in the filter will be lower than the pond. This is worse in my situation and yours because the distance of 4" pipe we have between our pond and filter. Because our filters are some distance from the pond our head loss will be greater and the drum has a chance of not operating correctly with the sensors.
    For reference my filter is gravity fed with pump located after the filter, pumping back to the pond, pond is 5500g.
    So lets say in your circumstance your pond is roughly 3500g, you may want to achieve a flow of 2000-3000gph, which could possibly give you a 100mm head loss, you need to check and see if your drum can operate with those levels. With mine it wouldn't, with a 100mm head loss it would be lower than the cleaning probe and be consistently cleaning. Just to recap if your filter was next to your pond then there would be no problem.
    Another problem you may have is if you only have say 2500gph flow through your 50 foot of 4" pipe to filter you will certainly get settlement forming in that kind of distance. You need an easy way to flush your bottom drain to waste before your filter, an absolute must!

    Thanks Dave, quite a lot for me to consider, apart from moving the filter next to the pond it looks like I'm heading for problems . Does increasing the flow rate alleviate the problem ?

    The pipe to the filter will have a couple of slide values and an opening so I'll be able to purge .

  2. #62
    Hello all, another video on youtube : https://www.youtube.com/watch?v=xPRF_q5trGA


    The window frame has arrived and been fitted:

    P1030975.JPG

    P1030963.JPG

    P1030957.JPG


    The base of the pond is in place, ready for the liner :
    P1030976.JPG

    The filter house has been cleared and ready for the move to it's new position, its base build is in progress.

    It's all coming together quite quickly now, should be a few interesting weeks ahead .

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  4. #63
    Extreme Koi Member Rank = Gosai koicarpus's Avatar
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    Looking good Eifion.
    No increasing the flow makes head loss worse.
    Would you like me to do a video with what happens on my filter?
    You never know you maybe fine, trial and error with the pump, and your drum may be ok. How about asking them to install another 4” pipe in the trench just incase you need to add another feed to the drum.
    Dave

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  6. #64
    Quote Originally Posted by koicarpus View Post
    Looking good Eifion.
    No increasing the flow makes head loss worse.
    Would you like me to do a video with what happens on my filter?
    You never know you maybe fine, trial and error with the pump, and your drum may be ok. How about asking them to install another 4” pipe in the trench just incase you need to add another feed to the drum.
    Dave
    Hello Dave, that's very kind, I would be interested in seeing the affect of head loss on your setup .

    I'll have a chat with the builders during the week about this .

    Thanks

    Eifion

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  8. #65
    Hello all, an update on last weeks progress : https://www.youtube.com/watch?v=C_GE5NNr8Bo

    Filter house moved and base complete.

    Pipework lose fitted. The drum filter is arriving on Tuesday, will experiment with positioning of the filter to see the affect of head loss .

    Dechlorinator arrived and un-boxed .

    Should be some interesting developments over the next few weeks

    P1040004.JPG

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  10. #66
    Extreme Koi Member Rank = Adult Champion anne's Avatar
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    Look at you Eifion, all excited like a little lad opening his presents on Christmas morning pleased to see
    the cows haven't gone to far, and your filter house reminds me of ''little house on the prairie'' all looking good.
    Ps....nice legs...lol .

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  12. #67
    Quote Originally Posted by anne View Post
    Look at you Eifion, all excited like a little lad opening his presents on Christmas morning pleased to see
    the cows haven't gone to far, and your filter house reminds me of ''little house on the prairie'' all looking good.
    Ps....nice legs...lol .
    Hello Anne, I just realised at no point can you tell if I'm wearing clothes. That'll teach me to wear shorts when I'm recording .

    Wait till the drum filter arrives, then you'll see me excited .....

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  14. #68
    Extreme Koi Member Rank = Gosai koicarpus's Avatar
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    Did a video mate but can’t upload it for some reason. Bean trying for ages

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  16. #69
    Quote Originally Posted by koicarpus View Post
    Did a video mate but can’t upload it for some reason. Bean trying for ages
    Thanks Dave, would it be too large for email ? I could send you my email address .

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  18. #70
    Extreme Koi Member Rank = Gosai koicarpus's Avatar
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    I can try New pond construction in progress, really appreciate feedback


    Sent from my iPhone using Tapatalk

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  20. #71
    Hello all, here's last weeks update : https://m.youtube.com/watch?v=YbVc68EGHao&t=323s

    Had a few rainy days so not much progress on the pond but the drum filter arrived so I've done an in-depth video of it ( let me know if you have any questions ) and I paid a visit to my local koi dealer .

    Sorry Ann, no wildlife this week

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  22. #72
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    You live in paradise Eifion,please be carefull useing the 3 stage purifier i lost a lot of fish a long time ago relying on them as it didnt take out all the chlorine,till i heard of Sodium Thiosulphate dechlorinater very cheap,i am a bit paranoid about it now https://www.ebay.co.uk/itm/Sodium-Th...QAAOxyNo9SoPgf
    Here is a link if you want to get some,and you need some Dpd4 tablets they check if there is any chlorine present go on Manky Sanky site he explains it all.

    You are doing a great job there and love where you live.
    John

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  24. #73
    Extreme Koi Member Rank = Gosai koicarpus's Avatar
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    Bit of s rubbish video, had about 3 glasses of wine at this point! Think the sun got to me as well. Hopefully you can make sense of it!!

    Dave

    https://youtu.be/mtBSD7gcrmc



    Sent from my iPhone using Tapatalk

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  26. #74
    Extreme Koi Member Rank = Adult Champion anne's Avatar
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    Right, not happy Eifion, you've got clothes on...……..the dog looks bored...……….and nearly no wildlife .
    But as there is a glimpse of the view I will let you off..
    Agree with john '' paradise '' .

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  28. #75
    Quote Originally Posted by koicarpus View Post
    Bit of s rubbish video, had about 3 glasses of wine at this point! Think the sun got to me as well. Hopefully you can make sense of it!!

    Dave

    https://youtu.be/mtBSD7gcrmc



    Sent from my iPhone using Tapatalk
    Dave, firstly what a fantastic pond and setup .Love the appearance of the empty wine glass

    Thanks again, seeing the water level drop I can see the challenge I'll have with my set up. I think I'll need a plan B

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  30. #76
    Quote Originally Posted by john1 View Post
    You live in paradise Eifion,please be carefull useing the 3 stage purifier i lost a lot of fish a long time ago relying on them as it didnt take out all the chlorine,till i heard of Sodium Thiosulphate dechlorinater very cheap,i am a bit paranoid about it now https://www.ebay.co.uk/itm/Sodium-Th...QAAOxyNo9SoPgf
    Here is a link if you want to get some,and you need some Dpd4 tablets they check if there is any chlorine present go on Manky Sanky site he explains it all.

    You are doing a great job there and love where you live.
    Thanks John, great tip, I'll order some and keep an eye on the chlorine levels.

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  32. #77
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by koicarpus View Post
    Bit of s rubbish video, had about 3 glasses of wine at this point! Think the sun got to me as well. Hopefully you can make sense of it!!

    Dave

    https://youtu.be/mtBSD7gcrmc



    Sent from my iPhone using Tapatalk
    Stunning garden and beautiful pond. Love it New pond construction in progress, really appreciate feedback

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  34. #78
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Agree great pond and garden.
    Love the setup. Great video. Loved it.

    Sent from my SM-G925F using Tapatalk

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  36. #79
    Hello all, here's last week's update : https://www.youtube.com/watch?v=d1aGhuRs6tU

    Finishing off the last few jobs before the real fun starts, the pond is now up to it's final height, pond liner on order so will hopefully fit this next week along with the window .

    The filter house has been rebuilt, painted and the filters in ready for plumbing .

    I've reserved some koi, couldn't wait

    Anne, I've managed to get a new species in this episode …..

    Here's a few pics :

    P1040059.JPG

    P1040060.JPG

    P1040065.JPG

    P1040066.JPG

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  38. #80
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Awsome Eifion,when can i move in,i dont mind living in the Wendy house one bit.

    You are similar to me i think liking nature and not hurting life,you are one lucky guy living there.
    John

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