Welcome to Koi Forum. Is this your first visit? Register
Results 1 to 10 of 10

Thread: Nexus Air

  1. #1

    Nexus Air

    Hi I have recently installed a nexus 200, The k1 in the moving bed only seems to be moving in a couple of places, any ideas why ? the air pump is working fine. could there be too much K1 ?
    Thanks



  2. Thanks Ajm, freddyboy, andikoi Thanked / Liked this Post
  3. #2
    Senior Member Rank = Mature Champion Ajm's Avatar
    Join Date
    Mar 2018
    Location
    Durham
    Posts
    2,221
    Thanks / Likes
    4660
    Quote Originally Posted by Jedstone View Post
    Hi I have recently installed a nexus 200, The k1 in the moving bed only seems to be moving in a couple of places, any ideas why ? the air pump is working fine. could there be too much K1 ?
    Thanks
    Think some people change stones/defusers but not sure

    Sent from my SM-N950F using Tapatalk
    Johnathan

  4. Thanks Jedstone, freddyboy, andikoi Thanked / Liked this Post
  5. #3
    I would check the circular pipe that is in the bottom of the Nexus, pound to a penny it’s blocked or blocking up with calcium. Best way is remove it completely take off the push fit connectors so you just have the pipe, you may have fun doing it, they will probably be coated in calcium, then put a 3mm drill bit in to clean the holes, if it’s still has calcium in the pipe, a smack against a wall will help break it up, also for those that can remember, the modified Cortina aerial, unraveled and straightened out and put down the pipe, not easy to find nowadays, plastic clothes hangers are just no use

  6. Thanks Ajm, Stuffyrat, freddyboy, andikoi Thanked / Liked this Post
  7. #4
    Senior Member Rank = Gosai Sim's Avatar
    Join Date
    Nov 2018
    Location
    Berkshire
    Posts
    300
    Thanks / Likes
    439
    Yes same as has been said, I used to use a 2mm drill bit just push it into the holes by hand and twist it around.
    Easy job used to have to do it at least twice a year on mine as I live in a hars water area.

  8. Thanks freddyboy, andikoi Thanked / Liked this Post
  9. #5
    Extreme Koi Member Rank = Hassai Scamp's Avatar
    Join Date
    Nov 2014
    Posts
    806
    Thanks / Likes
    721
    Hi, how much K1 is in there. Dead spots are common if the filter has been running a while, also in hard water area as the air ring scales up. I live in very hard water area, so ditched the ring and removed, used the air input pipe to connect a simple 6 way air manifold and connected half can air stones around the bio area. For me and a few others on here works a treat, boils nicely. If one starts to block, I can pull it out and connect a new one..otherwise as suggested above you can try and clean the original ring, but it’s a faff getting it out regularly..cheers

  10. Thanks freddyboy, andikoi Thanked / Liked this Post
  11. #6
    Senior Member Rank = Supreme Champion freddyboy's Avatar
    Join Date
    Mar 2016
    Posts
    7,181
    Thanks / Likes
    10244
    I have the ring and air stones running of a manifold. 6x airstones.as the nexus ring leaves dead spots. Bad design. In my opinion.

    Sent from my SM-G960F using Tapatalk

  12. Thanks Scamp, andikoi Thanked / Liked this Post
  13. #7
    Senior Member Rank = Grand Champion andikoi's Avatar
    Join Date
    Aug 2013
    Location
    wakefield,west yorkshire
    Posts
    3,336
    Thanks / Likes
    3363
    ive got 4 stones attached to my jeboa pa100, boils like a gud un,,,,,,andi

  14. Thanks Scamp, freddyboy Thanked / Liked this Post
  15. #8
    Senior Member Rank = Supreme Champion freddyboy's Avatar
    Join Date
    Mar 2016
    Posts
    7,181
    Thanks / Likes
    10244
    Quote Originally Posted by andikoi View Post
    ive got 4 stones attached to my jeboa pa100, boils like a gud un,,,,,,andi
    That's the pump I run on my nexus andi.
    Good old boil

    Sent from my SM-G960F using Tapatalk

  16. Thanks andikoi Thanked / Liked this Post
  17. #9
    Senior Member Rank = Mature Champion RS2OOO's Avatar
    Join Date
    Feb 2018
    Location
    South East
    Posts
    2,319
    Thanks / Likes
    5074
    Same as above, I fitted 6x normal airstones and it bubbles so much better and is a lot quieter too.

    However, if you're K1 is brand new it tends not to move very well for the first Month so it could just be that.
    Last edited by RS2OOO; 01-10-2019 at 06:54 PM.

  18. Thanks freddyboy Thanked / Liked this Post
  19. #10
    If the circular air diffuser starts to clog on my Evolution Aqua pro bio system, and because its not practical to remove the circular pipe, I have found my air compressor connected to the air feed pipe does the trick, with just a short burst of a higher PSI volume of air works every time for me.

  20. Thanks RS2OOO, Ajm, freddyboy Thanked / Liked this Post
 

 

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT +1. The time now is 05:55 PM. Online Koi Mag Forum
Powered by vBulletin® Version 4.2.3
Copyright © 2019 vBulletin Solutions, Inc. All rights reserved.

vBulletin Improved By vBFoster® (Lite Version), © UltimateScheme, Ltd.