Micro bubbles NIGHTMARE!!

Discussion in 'Beginner Discussions' started by Alias, 5 Jun 2011.

  1. Alias

    Alias

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    Hey all,

    For the life me o cant get the micro bubbles out of my display.

    I have durso with ball valve into the return chamber and a baffle to try get them to stop.

    I have tried putting a T piece on the bottom of the pipe but no joy. I even put a drain pipe up to try force them to rise but they still getting pulled under the baffle.

    Here's a pic:

    [​IMG]

    Any ideas?
     
  2. AdS Guest




    to hide all adverts.
  3. 459b

    459b Moderator MASA Contributor

    Joined:
    12 Mar 2008
    Posts:
    9,733
    Likes Received:
    785
    Location:
    Cape Town
    Can you perhaps post a pic of the sump layout.
    Dont see how micro bubbles from your overflow will make it past the baffles and into the DT. Could the microbubbles be coming from elsewhere..maybe slight hole in return pipe?
    You could try running your overfow pipe into a filtor sock (or milk filter). This should decrease bubbles in sumpo and add to your mechanical filtration.
     
  4. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    [​IMG]

    Here is a pic. They are definitely coming from the return pipe, i can actually watch them run under the baffle..
     
    Last edited: 5 Jun 2011
  5. 459b

    459b Moderator MASA Contributor

    Joined:
    12 Mar 2008
    Posts:
    9,733
    Likes Received:
    785
    Location:
    Cape Town
    What is the flowratre of your return pump?
    Can you see the bubblers travel all the way through your sump and too the inlet of your pump?
    I run my sump with the water level about 5cm above the return pump. I then have a piece of filter mat in the compartment with the pump to catch any stray bubbles.
     
  6. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    its a halea 6540 so 2880L/H. Im going to try something Riaanp has done on his system tomorrow, maybe that'll help. I can watch them run all the way across the sump :(
     
  7. Seabass

    Seabass

    Joined:
    28 Jul 2009
    Posts:
    2,383
    Likes Received:
    21
    Location:
    Gonubie
    Off topic, how long you been running the tank, very nice looking sump.
     
  8. RiaanP

    RiaanP Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,155
    Likes Received:
    1,230
    Location:
    Centurion
    what is the rating on that return pump (2880 - you already gave that info). Sump size and display size?

    I reckon the pump is too strong. But hard to judge due to the water level basically the same as the level in DSB section.

    Can try 2 90 degree elbows. And direct the overflow downpipe back up to the water level in first chamber. Then the bubbles is already close to the surface and should be harder for the water flow to suck it back down under the divider. But this will not solve salt spray issues. Can try my offset T-piece option.
     
    Last edited: 5 Jun 2011
  9. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    Im going to try the offset T-piece, maybe add the two 90's as well if there is still a problem. I had a smaller pump in there but the turn over rate was dismal, this was the next up so cant really go smaller.

    DT is 650x650x450. Sump is 600x400x450 i think.
     
  10. deadmeat2016

    deadmeat2016 Wouter

    Joined:
    19 Jul 2009
    Posts:
    1,506
    Likes Received:
    22
    Location:
    Gordons bay
    Try raising the water level and see what happens...
     
  11. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    i cant raise it much more else when the power fails the sump will flood with the syphon.
     
  12. deadmeat2016

    deadmeat2016 Wouter

    Joined:
    19 Jul 2009
    Posts:
    1,506
    Likes Received:
    22
    Location:
    Gordons bay
    Thats a bummer because the increased volume will decrease the force of the pump on said body of water, giving the bubbles more time to reach the surface instead of being sucked in via the return pump. maybe consider installing a check valve?
     
  13. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    what is a check valve? and install it where?
     
  14. Elrond

    Elrond

    Joined:
    7 May 2007
    Posts:
    269
    Likes Received:
    6
    Location:
    Cape Town
    My 2 cents (which I've been told is bollocks before) is that you need a baffle in the LAST chamber as this is most likely where the bubbles occur. I had micro bubbles in my previous system because I had one slanted division between my DSB and the return chamber, when I straightened it and added a baffle - problem solved. Should be easy to test... get a piece of glass cut to size and rest if on something 1cm from the bottom of the return chamber... if it works - awesome... if not... you wasted R30 on a piece of glass.
     
  15. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    cool, ill try that, bit worried the pump wont fit.
     
  16. Elrond

    Elrond

    Joined:
    7 May 2007
    Posts:
    269
    Likes Received:
    6
    Location:
    Cape Town
    Also the water level is too high in the sump imo... bubbles will go straight into the return chamber at that height...
     
  17. deadmeat2016

    deadmeat2016 Wouter

    Joined:
    19 Jul 2009
    Posts:
    1,506
    Likes Received:
    22
    Location:
    Gordons bay
    Its a 1-way valve, only lets water flow one way. You could plumb it into the pipework wherever water starts to siphon into sump during a power break, that way you won't have the sump overflow problem and can increase the water volume in your sump.
     
  18. Falcon

    Falcon

    Joined:
    26 Feb 2008
    Posts:
    2,869
    Likes Received:
    31
    Location:
    VEREENIGING
    alias,i suggest you take out that thermometer...rather get an external mounted one or a glass one as after a while the seal on the battery cover corrodes away and then tank water gets in and battery acid will leach into your tank....not good.

    I had this happen to two of mine hence i'm giving you the heads up
     
  19. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    ok cool, thanks.
     
  20. Alias

    Alias Thread Starter

    Joined:
    14 Mar 2011
    Posts:
    241
    Likes Received:
    0
    Location:
    Port Elizabeth
    @RiaanP

    I did the offset T and it didnt seem to help at all, but then i added the two 90's and directed the flow up and that worked like a charm.. almost no bubbles.. letting run tonight to see if the DT is clear in the morning.. lets hold thumbs.

    Not sure why the U turn worked so well, maybe the bubbles cant get past the corner.
     
    Last edited by a moderator: 26 Nov 2015
  21. RiaanP

    RiaanP Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,155
    Likes Received:
    1,230
    Location:
    Centurion
    Cool.
    Maybe the offset T-piece was too low on your tank. Else the flow is a bit too strong.

    Anyway, seems your issue is sorted.
     
Recent Posts

Loading...
Similar Threads - Micro bubbles NIGHTMARE Forum Date
Stocking a tank with Micro bubbles? General Discussions and Advice 30 Sep 2015
RSM250 Microbubbles? RSM Red Sea Max tanks 20 Jul 2015
130d microbubbles Aaaaargh!!! RSM Red Sea Max tanks 19 Oct 2014
Protein Skimmer Microbubbles Help! Nano Tank advice 5 Oct 2014
Week 2 of cycling & still micro bubbles Nano Tank advice 26 Sep 2014
Micro Bubbles Nano Tank advice 1 Aug 2014
Please help Red sea max 130d Micro bubbles General Discussions and Advice 21 Feb 2014