Marine Aquarium Society of Ventura County

Log in

I forgot my password

October 2017

SunMonTueWedThuFriSat
1234567
891011121314
15161718192021
22232425262728
293031    

Calendar Calendar

Number of site visitors


    Replacing pump hoses on the Bubble Magus doser

    Share
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Wed Apr 11, 2012 1:35 am

    Last week I notice that one of the surgical tubes on my Bubble Magus dosing pump started leaking from the pump that dosed alkalinity. I knew that I didn't want to let this go because if I did I would be back to manually dosing, and once you automate, you don't want to go back to doing anything manually again.

    I started researching to find a suitable replacement for the tubing, thinking that I would be able to find lots of threads on the subject and surprisingly enough, I couldn't find much. I asked on RC and got some info on a couple companies that may sale tubing that works. Someone posted the ID and OD of the tube and with that I ordered 8 feet of this
    from McMasters:

    Part Number: 5347K21
    ID: 2mm
    OD: 4mm
    Wall Thickness: 1mm
    Bend Radius: 7mm
    Cost Per Foot: $0.57

    The company is just south of us, I literally placed the order right before lunch today and when I got home from work the package was sitting at my door. Talk about quick!

    Here's the step by step:

    First things first, each one of those heads have 4 tabs, 2 on the top/bottom and 2 on the sides, the 2 that are on the sides clamp the head to the controller. All you have to do is get a good grip with your thumb and index finger and squeeze the tabs while pulling the head back away from the controller, slide it all the way back until it's completely detached from the motors shaft.





    Now that it's detached you can now start to disassemble the entire head, squeeze the 2 tabs on the top/bottom and this is where it was tricky to pry the 2 pieces apart, I luckily was able to get a fingernail in there to pry it apart enough to use a butter knife to get it the rest of the way.







    the rest is fairly straight forward, remove the disc that aligns the 3 rollers



    Remove the 3 rollers, make note of which way they came out



    Now the old tube can come out



    Remove the plastic clips that are on the old tube





    Remove the adapters



    As you can see, the tube has seen better days, the definitely needed to be replaced.

    Here's the new tube. it's obvious that this isn't surgical tube, however the new tubing is pretty soft and seems that it will work as a suitable substitute. Time will tell...



    Unravel some and cut to the approximate length, you definitely don't have to be accurate, just as long as you don't cut it too short





    Now you put it back together in reverse order



    Put those clips back into the case











    Now I found this to be a very important step, You have to make sure you can rotate that disc, this aligns everything up, if you were to put it all together and you didn't align the tubing, you will either burn the electrical motor or ruin the rollers.

    So give it a couple spins to ensure movement, it won't spin easily so you have to give it some delicate pressure.



    Once you're happy with it align everything and snap it into place





    Attach the head back to the unit ensuring you hear the clicks of the tabs



    do that to all of them and it should last another couple years




    One thing to also note is that to my knowledge the company doesn't sell just the tubing you have to buy the whole head unit and they are ~$20 a piece. After taking it apart I now realize why. The rollers have a thin rubber layer around them for the motor shaft to grip as it drives the rollers. That thin rubber layer obviously wears down and once it does the motors shaft will start to slip and ultimately stop driving the rollers altogether.






    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    nikecivic
    Moderator

    Posts : 1672
    Join date : 2011-11-09
    Location : Camarillo, CA

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by nikecivic on Wed Apr 11, 2012 2:07 am

    Thanks for the info, I'll definitely have to.di this to my doser. the replacement tubing lookslooks thicker than the stock tubing.


    _________________
    ------------------------
    MASVC Treasurer (2013)

    180 gallon tank going to have water soon!

    OfficeTank: 16 gallon glass cube with upgrade Maxijet 900 pump and DIY LED lights.
    avatar
    MxReEfEr92
    Admin

    Posts : 1727
    Join date : 2012-02-21
    Age : 25
    Location : Simi Valley

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by MxReEfEr92 on Wed Apr 11, 2012 2:08 am

    It also looks way better


    _________________
    In progress 54.6 gallon LeeMar Starfire | 2x Ecotech Radion XR30w Gen 3 Pro | Ecotech Mp40wes +battery back up | ATB Mikro Skimmer | Full APEX w/ AFS PM2 ALD VDM WXM| Tunze 3155| NextReef MR1 Reactor
    2014 MASVC President
    2013 MASVC Vice President
    SFVR Member
    SCRK Member
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Wed Apr 11, 2012 8:36 am

    Mike,
    I'm not sure what the tubing size was in its original form, mine was flattened and stretched out, but the one thing I know is that the wall thickness is definitely thicker. time will tell if this will work. I would also imagine that.if there is a difference in the tubes inner diameter that's going to change the accuracy of the dosing.

    buy we'll have to see . I'm about out if calcium so before I refill the bottle I am going to pump 100ml or rodi through it to see how accurate it still is.

    Cory,
    it does look better, and hopefully with the thicker tube it will last longer.


    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    nikecivic
    Moderator

    Posts : 1672
    Join date : 2011-11-09
    Location : Camarillo, CA

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by nikecivic on Wed Apr 11, 2012 8:51 am

    The accuracy can be checked with a graduated cylinder.


    _________________
    ------------------------
    MASVC Treasurer (2013)

    180 gallon tank going to have water soon!

    OfficeTank: 16 gallon glass cube with upgrade Maxijet 900 pump and DIY LED lights.
    avatar
    MxReEfEr92
    Admin

    Posts : 1727
    Join date : 2012-02-21
    Age : 25
    Location : Simi Valley

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by MxReEfEr92 on Wed Apr 11, 2012 4:10 pm

    what kind of 2part are you using? BRS?


    _________________
    In progress 54.6 gallon LeeMar Starfire | 2x Ecotech Radion XR30w Gen 3 Pro | Ecotech Mp40wes +battery back up | ATB Mikro Skimmer | Full APEX w/ AFS PM2 ALD VDM WXM| Tunze 3155| NextReef MR1 Reactor
    2014 MASVC President
    2013 MASVC Vice President
    SFVR Member
    SCRK Member
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Wed Apr 11, 2012 7:06 pm

    nikecivic wrote:The accuracy can be checked with a graduated cylinder.

    I'm going to use a graduated measuring cup.. Smile


    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Wed Apr 11, 2012 7:08 pm

    coryg wrote:what kind of 2part are you using? BRS?
    Yeah, BRS seems to have the highest grade for the lowest price. I changed from B-ionics about 9 months ago.

    I also dose mag as well on a seperate doser.


    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    dfladermaus
    Charter Member

    Posts : 489
    Join date : 2011-07-24
    Age : 41

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by dfladermaus on Wed Apr 11, 2012 8:54 pm

    There is a reason why the peristaltic pumps use those rubber tubes...hopefully the ones you got hold up.
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Thu Apr 12, 2012 8:47 am

    yeah, I'm keeping a close eye on it, the new tubing is very soft but not as thin as the surgical stuff.


    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    dfladermaus
    Charter Member

    Posts : 489
    Join date : 2011-07-24
    Age : 41

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by dfladermaus on Thu Apr 12, 2012 12:48 pm

    I think that maybe there is something in those surgical tubes that makes them last longer and also makes the rollers work better. I should ask around, we have a ton of peristaltic pumps in some of the labs here.
    avatar
    dwolson2
    Admin

    Posts : 2356
    Join date : 2011-08-07
    Location : Where ever I am told to go

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by dwolson2 on Thu Apr 12, 2012 12:51 pm

    you want to get a rid of any of them Wink


    _________________
    2012 MASVC Treasurer, 2013 MASVC webmaster/secretary
    Wasting money on my tank one paycheck at a time!!
    50 Gal Cadlights(No thread, as its still a bit away from finishing it)
    avatar
    dfladermaus
    Charter Member

    Posts : 489
    Join date : 2011-07-24
    Age : 41

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by dfladermaus on Thu Apr 12, 2012 1:13 pm

    Not mine to get rid of unfortunately.
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Thu Apr 12, 2012 4:51 pm

    dfladermaus wrote:I think that maybe there is something in those surgical tubes that makes them last longer and also makes the rollers work better. I should ask around, we have a ton of peristaltic pumps in some of the labs here.
    Paul,

    Please do, I for one would like to know the answer to that.


    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President
    avatar
    MxReEfEr92
    Admin

    Posts : 1727
    Join date : 2012-02-21
    Age : 25
    Location : Simi Valley

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by MxReEfEr92 on Thu Apr 12, 2012 5:39 pm

    Hmm that would be interesting to find out


    _________________
    In progress 54.6 gallon LeeMar Starfire | 2x Ecotech Radion XR30w Gen 3 Pro | Ecotech Mp40wes +battery back up | ATB Mikro Skimmer | Full APEX w/ AFS PM2 ALD VDM WXM| Tunze 3155| NextReef MR1 Reactor
    2014 MASVC President
    2013 MASVC Vice President
    SFVR Member
    SCRK Member
    avatar
    dwolson2
    Admin

    Posts : 2356
    Join date : 2011-08-07
    Location : Where ever I am told to go

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by dwolson2 on Thu Apr 12, 2012 11:07 pm

    dfladermaus wrote:Not mine to get rid of unfortunately.
    Just giving you a hard time, I figured as much.


    _________________
    2012 MASVC Treasurer, 2013 MASVC webmaster/secretary
    Wasting money on my tank one paycheck at a time!!
    50 Gal Cadlights(No thread, as its still a bit away from finishing it)
    avatar
    sisterlimonpot
    Admin

    Posts : 1574
    Join date : 2011-07-25
    Location : Oxnard

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by sisterlimonpot on Sun Apr 15, 2012 2:52 pm

    This morning I refilled my containers with new alk, calc, mag and vodka. Before putting everything back under the tank, I tested pump #2 by pushing 1000ml through the pump and measures it, I did the same thing when I first bought it and here are the results that I had new and what I got this morning:

    Brand new, programmed to push 1000ml it pushed a little over 900ml (graduation marks were 50ml increments)


    Today with new hoses programmed it to push 1000ml, it pushed exactly 800ml.


    Before changing the hoses I had it programmed to dose 75ml a day (alk and calc) but in actuality I was dosing 67.5 ml a day, now that I have the new hose on, I'm actually dosing 60ml, to compensate I need to increase the daily dose to 84ml to get back up to 76.2. Which is what I did this morning.

    As long as you compensate for the differences and know that you are putting 0.8ml to every 1ml that is programmed, you'll be set.

    Paul, have you gotten any information on why to use only the surgical hose?



    _________________
    2014 MASVC Premium Member
    2013 MASVC President
    2012 MASVC Vice President

    Sponsored content

    Re: Replacing pump hoses on the Bubble Magus doser

    Post by Sponsored content


      Current date/time is Fri Oct 20, 2017 9:05 am