Replacement tubing for Bubble Magus Doser

[drw94]

I am in need of replacing my tubing. I know you can buy complete heads from BRS. But has anyone identified any suitable replacement tubing?
Thanks!

[drw94]

So from the lack of response, I guess no one currently on the forum has tried to find replacement tubing, with out buying the whole head. I found on another forum someone measured the tubing. He measured 4mm OD and 2mm ID, and he used viton tubing. I researched a little more and most dosing pumps are santoprene tubing. The problem is I am unable to find this in metric sizing. I called up a tubing supplier and ordered some viton(in metric), santoprene(in inch fractions), and tygon(in metric). The tubing supplier recommended tygon as it is commonly used in peristalic pumps. Once the tubing comes in I will try to see which one more like the original tubing. I will also give part numbers and prices.

[ZR1001]

Let us know if you find the correct replacement tube. I need to change mine too.

[moondoggy4]

socaltropicalfish .com they carry the line

[drw94]

I am trying to figure out what tubing they use. I am having a hard time buying new heads when only the tubing needs replacement. It is more of a principle thing than a money thing with me. If it proves to hard, then i'll just go and buy the heads.

[moondoggy4]

socal sells the parts and tubing

[mr. pluto]

maybe here
http://www.harvardapparatus.com/weba..._N_37951_37956

[Wolfgang]

There are other Threads about this problem. No One sells the replacement Bubble Magus Tubing. I can't believe that this has not been brought up before!!!!
$20.00 a pop for replacement heads X 3 just to get the tubing every six Months is crazy!!!!!!
Unless the tubing is located, I'll be going with a GLH Doser. Replacement Tubing sets are available from them.
I sent off a E-Mail to Victor @ ATB................ No Reply.
Sent off a E-Mail to Bubble Magus................. No Reply.
Why the Company doesn't offer replacement tubing sets for their own doser is just nuts!

[jefstathiou]

I, too, sent an e-mail off to BubbleMagus,; no reply. There must be a solution. This is crazy.

[Addiction2SPS]

I just use regular airline tubing on mine when I had to replace

[Wolfgang]

We are discussing the tubing for the Pump Heads, not the airline supply tubing.

[drw94]

It looks like the tubing is Santoprene. From talking to a tubing supplier you need a tubing that is made for peristaltic pumps. They suggested tygon. The only thing I can think off as another requirement, it to withstand the fluid that goes through it. I know the alk solution is basic. But to what point I don't know. I have no idea about the calcium solution. The tubing needs to with stand continuous contact with this solution, and not leach anything. Maybe someone with more chemistry can chime in. I will contact brs to see if I can get a msds to get a better idea of concentration in solution. From what I researched Santoprene can with stand the various liquids, but I can't find anything on its use in peristaltic pumps. This might be a mute point if it is changed out often enough.

[drw94]

So yesterday at work I did contact BRS and they sent me the msds for the products they use in their 2 part recipe one. I also did a search of each tubing to see if it was compatable with each product. Basically, all three tubing would work for chemical resistance. Tygon being the best, then santoprene, then viton. I think this is a mute point since you could change it out more often. The tygon was the only one that was recommended for peristaltic pumps. When I got home today I looked at each tubing and the santoprene was not the right size. The other two has the same OD as the original, but the originals wall thickness seems to be slightly smaller. The replacement tubing is 4mm od, 2mm id, and 1 mm wall thickness. I installed both the viton and tygon on different heads. Both held liquid good. The viton is black so you can't see the liguid and the tygon is clear. I ran the heads for a little bit and they seemed not to be working any harder than the oem tubing. Only time will tell if this is a viable solution for replacing the tubing only. I can see replacing the heads every years because plastic does wear out.
Here are the parts numbers I ordered.
They are from McMaster-Carr.
Viton is 5102K11 3.59 foot, and Tygon is 5347K21 0.57 foot(25 foot min.).
I also think proper lubrication with a silicone type grease with help with the longevity of the heads and tubing. I also think it would help with prevent the tubing from sliding in the head making the ends uneven. For me personally I am leaning toward the tygon for two reasons. 1 it is rated for peristaltic pumps, and 2 it is clear. McMaster-Carr was very helpful in trying to find the right tubing. Hope this helps all the bubble magus owners out there.

[ZR1001]

Thanks!!!

[JDK]

Originally Posted by drw94

So yesterday at work I did contact BRS and they sent me the msds for the products they use in their 2 part recipe one. I also did a search of each tubing to see if it was compatable with each product. Basically, all three tubing would work for chemical resistance. Tygon being the best, then santoprene, then viton. I think this is a mute point since you could change it out more often. The tygon was the only one that was recommended for peristaltic pumps. When I got home today I looked at each tubing and the santoprene was not the right size. The other two has the same OD as the original, but the originals wall thickness seems to be slightly smaller. The replacement tubing is 4mm od, 2mm id, and 1 mm wall thickness. I installed both the viton and tygon on different heads. Both held liquid good. The viton is black so you can't see the liguid and the tygon is clear. I ran the heads for a little bit and they seemed not to be working any harder than the oem tubing. Only time will tell if this is a viable solution for replacing the tubing only. I can see replacing the heads every years because plastic does wear out.
Here are the parts numbers I ordered.
They are from McMaster-Carr.
Viton is 5102K11 3.59 foot, and Tygon is 5347K21 0.57 foot(25 foot min.).
I also think proper lubrication with a silicone type grease with help with the longevity of the heads and tubing. I also think it would help with prevent the tubing from sliding in the head making the ends uneven. For me personally I am leaning toward the tygon for two reasons. 1 it is rated for peristaltic pumps, and 2 it is clear. McMaster-Carr was very helpful in trying to find the right tubing. Hope this helps all the bubble magus owners out there.

I cant find this tubing on McMaster carr. There are many different types of tygon tubes. Can you post a direct link? Thanks

[kenith]

I have not replaced mine and it's about a year old. Mine is doing just fine. How do you know when it's time to change?

[JDK]

Originally Posted by kenith

I have not replaced mine and it's about a year old. Mine is doing just fine. How do you know when it's time to change?

They recommend every six months but I believe that is over kill. Looks stretched and thin

[kenith]

Originally Posted by JDK

They recommend every six months but I believe that is over kill. Looks stretched and thin

Definitely looks stretched and thin. Is the replacement recommended for maintaining proper dosing values or fear of the tube rupturing?

[drw94]

http://www.mcmaster.com/#catalog/118/122/=h07ycu Its the laboratory clear tubing 4mm od, 2mm id. I have stopped using my doser as I started using kalk after my tank crashed, dosing needs not that high yet. While in use the tygon looked like it would work. The only thing wrong with the tubing is the ID is not the same at the original stuff. This is not a big deal as you just have to increase the dosing rate a little. But once you get it figured out you should not have to mess with it anymore. My suggestion is to have a few people go in on a buy. The tubing is cheap, but you can only buy it in lengths of 25 feet. That is way more that i'll ever use in 10 years. I sent some tubing to dan223 so maybe he will chime in and let everyone one know his opinion on the tubing.

[JDK]

Originally Posted by kenith

Definitely looks stretched and thin. Is the replacement recommended for maintaining proper dosing values or fear of the tube rupturing?

I would think both are a concern.

[JDK]

So I found this tubing which is stated specifically for peristaltic pumps. Tygon Pharmed? Sizes in standard measurements but I converted to mm and it is pretty close. http://www.mcmaster.com/#pharmed-tubing/=h1dyj9- Looking at the 5/32" OD and 1/32" ID

Also found the same stuff at US plastics but it is out of stock-
http://www.usplastic.com/catalog/ite...2671&catid=864

[Sisterlimonpot]

I put together a step by step of how to replace the tubing in this thread.

[drw94]

Originally Posted by JDK

So I found this tubing which is stated specifically for peristaltic pumps. Tygon Pharmed? Sizes in standard measurements but I converted to mm and it is pretty close. http://www.mcmaster.com/#pharmed-tubing/=h1dyj9- Looking at the 5/32" OD and 1/32" ID

Also found the same stuff at US plastics but it is out of stock-
http://www.usplastic.com/catalog/ite...2671&catid=864

I look at the standard sizes and even ordered some. It won't work. 4mm is the OD of the original tubing. ID is a little more than 2 mm. The tygon tubing is recommended for peristaltic pumps. No need for others to waste money as I already did that. Got to remember these item are mostly likely made in Asia somewhere and they use metric sizing. The USA needs to get on board and just switch to metric, so much easier.

[drw94]

Originally Posted by Sisterlimonpot

I put together a step by step of how to replace the tubing in this thread.

Thats the same steps I used. What size tubing did you use? Thanks for the step by step. Pretty easy.

[Sisterlimonpot]

I used the 4mm od, 2mm id from mcmasters, So far this one is working fine, however it's too soon to tell, the tubing is soft enough for the rollers to pinch off the fluid. The inner diameter may be a concern just for accuracy of how much it's dispersing. When I have to refill the containers I am going to set the pump to push out 100ml into a container and see how accurate it is with this new tubing.