Water flow in large tanks

Discussion in 'Pumps and Waterflow' started by LCornelius, 29 Mar 2011.

  1. LCornelius

    LCornelius Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Hi all,

    I have been reading the net and trying to figure out how flow works in big systems.
    The tank that I'm planning will be 4m in length 900mm wide and water level at 500mm.

    The tank will be viewable from both the 4m sides. Would one run this as a CLS or a CLS with wave makers or just wave makers.

    Been looking at the Vortech MP40w ES and MP60w ES. Amazing equipment!
    Would it be good enough to run 2 MP40's on the 2 sides or rather the MP60's.

    The MP60's is very expensive, I can get 2 MP40's for the price of one MP60.

    I was thinking of running 2 CLS's so that one could switch between the 2 every few minutes. Would this be a good or bad idea? I would then use the MP40's with the CLS.

    With the wonderful 25% increase in electricity, my biggest concern is the electricity usage of CLS pumps!

    Appreciate your input!
     
  2. AdS Guest




    to hide all adverts.
  3. ziyaadb

    ziyaadb

    Joined:
    18 Jul 2007
    Posts:
    5,566
    Likes Received:
    48
    Location:
    JHB-Lenzz
    on a tank that size u cant use 2 mp40's on the sides as they too small rather 4 would be my take. MP60 would be great ideally 2 alternatly if budget is an issue get the ocean medic wavers they are huge big blowers but they are cheap think u can get 4 of them for the price of 2 mp40's and they pack a decent punch, this is if u going the sps route.
    if u go the softies or lps route im sure that u could get away with 2 mp 40 or 1 60 with supplimenting flow with either seios or sun suns.

    i am not a fan of cls as the flow is too dense prefer a wider flow
     
  4. durleo

    durleo

    Joined:
    27 Jul 2009
    Posts:
    1,356
    Likes Received:
    15
    Location:
    durban
    If your tank is braced properly - why not add a tunze wavebox and 2 x mp40 and a few sun sun pumps at the bottoms to keep the flow random and prevent dead spots -
     
  5. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Thanks ziyaadb, appreciate the input. If possible I would also like to stay away from CLS. Lookls like I will have to go with the MP60's, because I don't want anything on the 2 viewing sides.
     
  6. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Thanks durleo, I like your idea of the wavebox! The tank will be properlt braced.
     
  7. 459b

    459b Moderator MASA Contributor

    Joined:
    12 Mar 2008
    Posts:
    9,748
    Likes Received:
    789
    Location:
    Cape Town
    Have a look into tunze waveboxe's. They look neat and provide good flow. Besides proper bracing, youll need to make sure that your overflow can handle the waves.
    There is a thread somewhere on diy waveboxes.
     
  8. butcherman

    butcherman Moderator MASA Contributor

    Joined:
    7 Sep 2009
    Posts:
    11,626
    Likes Received:
    280
    Location:
    Kempton Park
    +1 on the tunze wave box
     
  9. Suhayl

    Suhayl

    Joined:
    24 Sep 2007
    Posts:
    1,230
    Likes Received:
    18
    I would build a surge system, cheap and can move large amount of water easily. Check out Borneman surge device, and thee many others that work similar.
     
  10. leslie hempel

    leslie hempel Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    14,546
    Likes Received:
    285
    Location:
    Gonubie East London
    it all as usual depends on what you want to achieve, i love the Tunze wavebox idea but it needs to be supplemented with additional flow for detritus export to the overflow.

    from a maintenance point of view i find Tunzes fantastic as there is very little if any maintenance but the idea od vortech and 2 seperate parts dont gel well with me.

    if they are not aligned properly there will be wear and it is even suggested by ecotechmarine that certain bushes etc be renewed yearly.

    from a flow perspective they are awsome barring the lack of directionality. Tunze wins hands down here.

    on the CLS:

    a problem has always been a good econimically viable pump for its operation and there are allot of pumps now available to fulfil this void.

    AM eco runner/ Reeflow and pumps like this with low wattage and high flow outputs are now becoming readily available. but at a price

    i would personally use these to flush dirt from beneath the rockwork periodically rather than run 24/7 as this will just chew electricity.

    also make sure you service seals occasionally and have gatevalves in place to perform such servicing.etc
     
  11. Suhayl

    Suhayl

    Joined:
    24 Sep 2007
    Posts:
    1,230
    Likes Received:
    18
    If you want to use the waveboxes you can copy mine. I have waveboxes made out of cast acryllic, than a adjustable 0-30v power supply and Omron timer. The pump used is a Resun stream pump. I must be honest to say that 2 waveboxes can make a over 3 metre rock. Thats like the in thing in Bangkok on my last visit all the guys just after those waveboxes. South Africa always a bit behind with stuff.
     
  12. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Thanks for all the responses, they are noted and appreciated.

    Looks like running a tunze wavebox and a CLS would be the way to go.
    Then running one pump on the CLS every hour for 5min to flush dirt from LR.

    With a large enough wavebox, would I still need the vortech pumps? Maybe 2 MP40's on the other side of the tank? Run them in between the wavebox?
     
  13. leslie hempel

    leslie hempel Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    14,546
    Likes Received:
    285
    Location:
    Gonubie East London
    i would still incorporate a flow pump of choice (vortech or Tunze) they each have their own unique features. so yes i would add at least one other pump 2 being optimul.

    for a tank of this size (4m) you would possibly need a wavebox and a wavebox extention for it to work propperly but.

    The other thing to take into consideration is if you are going wavebox and are going to have a advanced controller (say a 7096 usb controller) it would make sence to stick with tunze as you could controll all pumps and wavebox extention from one controller.

    Just pointing it out. I am very Pro Tunze and dont want to come across as pushing them but i do just want you to know the full extent of your options.;)
     
  14. Johan van Aardt

    Johan van Aardt I love marines [R.I.P.]

    Joined:
    11 Jan 2009
    Posts:
    1,436
    Likes Received:
    4
    Location:
    cape town, table view
    i would use a tunze wavebox together with tunze streams for a tank that size. Then also a CLS for under the rock.

    Btw what are you going to do for light? If i were you i would look at solartubes and LED supplementation.
     
  15. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Thanks Leslie, you are right, would be better to stick to Tunze for the entire system.
     
  16. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Johan, I have not even thought of lights. This project will only start in a years time when I buy my parents house. It will be a monster light system. Will investigate solartubes and LED lighting.

    Thanks!
     
  17. leslie hempel

    leslie hempel Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    14,546
    Likes Received:
    285
    Location:
    Gonubie East London
    hoping by then that some better energy effiecient options are available.;)
     
  18. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Jip, because lights for a 4m tank will be steep!
     
  19. Suhayl

    Suhayl

    Joined:
    24 Sep 2007
    Posts:
    1,230
    Likes Received:
    18
    Be sure to have many Tunze pumps and back ones as they can give up on you at anytime. They do carry a warranty but have to be sent in everytime to be repaired. Those wavebox Tunze work hard so Im sure wont be long before it has to be sent in for repairs. I have the old Tunze 6100 pumps and they problem free.
     
  20. leslie hempel

    leslie hempel Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    14,546
    Likes Received:
    285
    Location:
    Gonubie East London
    did you buy the chinese Tunzes :tt2:

    i had simular issues with my vortechs, all the wet ends went and cost me a fortune. so far so good on Tunze but you never know. these things are all man made and subject to failure.
     
  21. LCornelius

    LCornelius Thread Starter Moderator

    Joined:
    5 Mar 2009
    Posts:
    5,460
    Likes Received:
    124
    Location:
    Durbanville (CPT)
    Ok Tunze it is!

    If I run 2 Turbelle 2 6105's on the 7096 multi-controller can I just add 2 wavebox extensions and use the multi-controller to control them?

    The reason is that if I buy the wavebox I get a controller with it and can run the wavebox and extension from it. It will be pointless having the wavebox controller if the multi-controller can run all of it!
     
Recent Posts

Loading...
Similar Threads - Water flow large Forum Date
Water Flow in DT General Discussions and Advice 24 Dec 2014
Water outflow 28G Nanocube Beginner Discussions 3 Oct 2014
Internal water flow Pumps and Waterflow 1 May 2011
Waterflow through pvc pipe scaping? General Discussions and Advice 10 Oct 2010
Water Flow Advice Boyu TL450 and TL550 advice 1 Sep 2010
Regulated Water Flow Pumps and Waterflow 1 Jan 2010
Speed of the water flow from RO Unit The Waterboy 11 Aug 2009