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  1. #61
    Senior Member Rank = Grand Champion andikoi's Avatar
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    oh and if i remember the airline is 12mm outer diameter and 10 mm inner,,,,andi

  2. #62
    hi andi..

    thanks for quick response...
    basically i need something to connect the rubber connector to the plastic airline...

    the nexus has the splitter piece fitted inside to alternate between inner and outer chamber.... so i just need to connect these two pieces..

    atb
    ryan

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  4. #63
    Senior Member Rank = Grand Champion andikoi's Avatar
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    This is going to sound dodgy but ive done it myself lol.get a small piece of garden hose.push airline inside that then into the rubber elbow and put spring clip in place.cheap easy fix..andi

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  6. #64
    thanks andi...

    i love these little tricks...im gonna try that mate.. sounds great.... im waiting for a valve to come from tinternet for my nexus.. once its filled im gonna try that trick...

    nice one

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  8. #65
    Quote Originally Posted by andikoi View Post
    This is going to sound dodgy but ive done it myself lol.get a small piece of garden hose.push airline inside that then into the rubber elbow and put spring clip in place.cheap easy fix..andi
    Nice one andi. I have done that on my qt. A good little trick

    Sent from my SM-G925F using Tapatalk

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  10. #66
    Quote Originally Posted by Binary1927 View Post
    hi guys..
    any one know how i connect the supplied evolution aqua air pump manifold to the 12mm airline tubing in nexus...

    i would of thought as these are both from same manufacturer that it would be click and play...

    im guessing i need a fitting or coupling of some sort... the manifold takes a 18mm attachment...

    and the airline is 12mm diameter...


    any help would b great

    Sent from my CLT-L09 using Tapatalk
    Here you go this is how mine goes.
    Air to nexus.
    Also i added that manifold. Them airlines go in the bottom of my nexus. As the air ring on the outer chamber nexus 320 does not do a good enough job. Just something for you to thing about later on.
    On mine there was a few dead spots for crap to settle. Meaning possible bad bacteria.
    Fred

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  12. #67
    thanks freddy...

    i have modified the ring in nexus by drilling more holes mate.. and i turned ring upside down.. so i will give that a try first... seevhow it goes... nice 1 for the pics

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  14. #68
    Quote Originally Posted by Binary1927 View Post
    thanks freddy...

    i have modified the ring in nexus by drilling more holes mate.. and i turned ring upside down.. so i will give that a try first... seevhow it goes... nice 1 for the pics

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    Nice one sounds like a plan.

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  16. #69
    Senior Member Rank = Kyusai RS2OOO's Avatar
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    Another option for the air ring is to ignore it and run 6 or 7 standard air stones on standard 4mm aquarium tubing linked to a 8 way manifold.

    Much quieter and much better air flow. Using this method my Nexus boils really well with 75 litres of K1 at just 50lpm air flow.... Saves on electric too as I need 70lpm to avoid dead spots on the original air ring.

    Sent from my Pixel 2 using Tapatalk

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  18. #70
    Hi rs2000.
    I have read about these options.. i do have 4 giant airstones spare that i could utilise a bit later if needed..
    im hoping i may be ok.. i got an ea 130 air pump on a nexus 200..so im hoping fingers crossed that its going to cope..

    cheers
    ryan



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  20. #71
    Senior Member Rank = Grand Champion andikoi's Avatar
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    if your running a 130 i would somehow incorporate a bleed off valve,as that will boil the heck out of the k1,really it wants to be a gentle simmer,plus you could be putting a lot of back pressure on air pump which will shorten its lifespan greatly,if you can put a T piece like freddy has with the manifold on then you can chuck a few airstones in pond or just the air out of valves,,,,andi

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  22. #72
    Quote Originally Posted by Binary1927 View Post
    Hi rs2000.
    I have read about these options.. i do have 4 giant airstones spare that i could utilise a bit later if needed..
    im hoping i may be ok.. i got an ea 130 air pump on a nexus 200..so im hoping fingers crossed that its going to cope..

    cheers
    ryan



    Sent from my CLT-L09 using Tapatalk
    what I think my problem was with the air ring on the 320. is that it is set to high set as in where they place it. I can t speak for the 200. also you will only know Ryan is when you give the nexus a clean out. then you will see if its working. meaning taking all the k1 out. I had a lot of k1 settling in the bottom in the feet. I have a 150 ea air pump on my nexus. and andi makes a good point there. about bleeding off. for life span. my problem on that score was solved when I had to put air stones in there. I still use the air ring as well. you sound as though you have been doing your homework mate. which is nice to see.
    Last edited by freddyboy; 15-04-2019 at 02:31 PM.

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  24. #73
    Member Rank = Nisai Sim's Avatar
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    I have had both small and large nexus and the problem is the same on both.
    I still have a 220 that I will sell soon but I was quite surprised how much muc builds up in the bottom, the extra air stones in the lower sections (most build up is in these sort of square sections in the bottom) reduces this alot.
    Also used a little bit of hose to join air lines together with a couple of zip ties to stop any air leak.
    Turning the air ring the other way didn't sort this, extra air stone is I think the best way forward.
    Last edited by Sim; 15-04-2019 at 03:44 PM.

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  26. #74
    thanks for all the comments... think before i fill the filter i will add a few more airstones to the ring as u mentioned... would this just be for the centre section.. or for both inner and outer

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  28. #75
    Senior Member Rank = Kyusai RS2OOO's Avatar
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    Just the outer section I'd say. The inner section send to be adequate as it is.

    I don't use the outer ring at all, I only keep it in place to attach air stones to.

    You could have a T piece on the main supply pipe to share air between the filter and the pond. Even though the pond won't be attached to the manifold, The amount of air that goes to filter is controlled by the taps on the manifold and any remaining air will naturally go to the pond.

    Can take some photos of mine if it will help but might not get chance to take them to tomorrow evening.

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  30. #76
    hi rs2000..
    just for the outer chamber u reckon.. ok brilliant...

    yeah any photos would be great

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  32. #77
    Senior Member Rank = Grand Champion andikoi's Avatar
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    As the eazy centre section is static until it comes to cleaning you dont need more air.only the aerated outer bio section needs it...andi

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  34. #78
    wicked stuff.. thank u all.... looks like i got some tinkering to do over easter

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  36. #79
    Senior Member Rank = Kyusai RS2OOO's Avatar
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    Here you go mate, just found this video which covers the bits you need....

    Only relevant part is from 2mins 23 seconds through to 3 mins.

    If you pause the video at 2mins 58 seconds you'll briefly see the T-Piece at the back of the Nexus right at the top of the frame where a pipe T's off to the pond air stone. This pipe has no adjustment - The air to the pond is automatically adjusted when I increase / decrease air to the manifold using the tap that comes with the Nexus (to the right of the manifold):

    https://www.youtube.com/watch?v=4PWsqyJACNI

    Last edited by RS2OOO; 15-04-2019 at 09:44 PM.

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  38. #80
    thanks mate.. thats brilliant..

    im about to head into work... but that will give some pleasant dinnertime viewing... New breeze block pond build.. Help!!New breeze block pond build.. Help!!

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