Bubble Magus dosing tubing

[Gtinnel]

I just picked up some used Bubble Magus dosing pumps (ts1). I am wanting to change out the tubing in the head before I start using them. Does anyone know what tubing I should be using?
I read online the factory tubing is 2mm ID and 4mm OD. I was hoping to use PharMed tubing but I’m not finding it in metric sizes. Other than PharMed I’m not really sure what other tubing is okay to use for a dosing pump head.

 

[vetteguy53081]

I just picked up some used Bubble Magus dosing pumps (ts1). I am wanting to change out the tubing in the head before I start using them. Does anyone know what tubing I should be using?
I read online the factory tubing is 2mm ID and 4mm OD. I was hoping to use PharMed tubing but I’m not finding it in metric sizes. Other than PharMed I’m not really sure what other tubing is okay to use for a dosing pump head.

I used silicone tubing

 

[JGT]

I just picked up some used Bubble Magus dosing pumps (ts1). I am wanting to change out the tubing in the head before I start using them. Does anyone know what tubing I should be using?
I read online the factory tubing is 2mm ID and 4mm OD. I was hoping to use PharMed tubing but I’m not finding it in metric sizes. Other than PharMed I’m not really sure what other tubing is okay to use for a dosing pump head.

Are they used? Just curious why you are swapping out the tubing.

 

[Gtinnel]

Are they used? Just curious why you are swapping out the tubing.

Yes sorry I forgot to mention that they were used pumps that I got from a member on here for a great price. They’re in good shape other than the tubing is in pretty bad shape. I got 6 of them for a little over $15 each with shipping so I couldn’t pass them up. While trying to hook up my tubing to the pumps to test them I actually ripped one of the tubes in the pump head. I could just buy new heads but I’d pay more for the head than the pump itself, and I would prefer just to replace the peristaltic tubing itself but I’m having a hard time finding the tubing that I need.

 

[JGT]

OK, that makes sense. I'd go with silicone tubing. Amazon's got a bunch. Like $10 for 10 ft. Would also consider getting a check valve for each as well. Also on AMZ and dirt cheap. Without it I was getting lots of bubbles so the dosing wasn't accurate. Check valve cleared that up.

 

[Gtinnel]

OK, that makes sense. I'd go with silicone tubing. Amazon's got a bunch. Like $10 for 10 ft. Would also consider getting a check valve for each as well. Also on AMZ and dirt cheap. Without it I was getting lots of bubbles so the dosing wasn't accurate. Check valve cleared that up.

I didn’t realize that regular silicone tubing was good enough for a peristaltic pump. In the past I have used PharMed and Santoprene tubing but I’m not finding either of those in metric sizes.

 

[JGT]

Over time, with all the stuff we pump through it, it'll need to be swapped out but it works fine. I'm actually using RO tubing on one of mine.

 

[Gtinnel]

I also found where I can buy small pieces of tubing from bubble magus but there is a pretty significant cost increase compared to buying just a 10’ piece of tubing.

 

[JGT]

I also found where I can buy small pieces of tubing from bubble magus but there is a pretty significant cost increase compared to buying just a 10’ piece of tubing.

Yeah, I had seen those. Didn't feel it was worth the extra .

 

[Gtinnel]

Over time, with all the stuff we pump through it, it'll need to be swapped out but it works fine. I'm actually using RO tubing on one of mine.

I will only be pumping small amounts of liquid (10ml/day) through them so it shouldn’t wear out too quick, plus if I’m just using cheap silicone tubing it’s not big deal for me to replace them once a year or so.

 

[JGT]

I will only be pumping small amounts of liquid (10ml/day) through them so it shouldn’t wear out too quick, plus if I’m just using cheap silicone tubing it’s not big deal for me to replace them once a year or so.

Yes, but it's the type of liquid that does the damage, not the amount. For example I dose sodium hydroxide for my alk. Extremely high PH and caustic. Takes it's toll on the tubing. Also over time they seem to clog as well. One of the tricks I learned was to bundle my ATO tubing with my dosing tubing. This way, when the ATO kicks in, it washes off the ends of the dosing tubes keeping them clog-free.

 

[Gtinnel]

Yes, but it's the type of liquid that does the damage, not the amount. For example I dose sodium hydroxide for my alk. Extremely high PH and caustic. Takes it's toll on the tubing. Also over time they seem to clog as well. One of the tricks I learned was to bundle my ATO tubing with my dosing tubing. This way, when the ATO kicks in, it washes off the ends of the dosing tubes keeping them clog-free.

Yes it would be things that are not caustic going through the pump, trace elements, Acropower, etc.
I need to do the same thing with the ends of my 2 part dosing lines letting them get rinsed off with my ATO but it’s one of the things that I never got around to doing. I also considered setting up a Neptune pmup to constantly run water over the ends of my dosing lines, I even bought the pmup and then never set that up either.

 

[JGT]

Yes it would be things that are not caustic going through the pump, trace elements, Acropower, etc.
I need to do the same thing with the ends of my 2 part dosing lines letting them get rinsed off with my ATO but it’s one of the things that I never got around to doing. I also considered setting up a Neptune pmup to constantly run water over the ends of my dosing lines, I even bought the pmup and then never set that up either.

ah, OK, well get crackin!