Best Dosing pump?
- Thread starter johnyboy
- Start date
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Here's a link.
Dead silent. Only when the cassette is refilling (depending on your rate, it will be far apart) you will hear a little pop but that's it.
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cpark645
Active Member
@morpheas
Thanks, so I ended up buying the pump and the cassettes. I'm trying to set it up like your picture, but all the youtube tutorials I've looked up on this pump shows that you need to fill up the cassette first before putting it into the pump. However to do that, it looks like I need the fluid to drip down and let gravity do the work. However, I see that for you, your fluid is below your pumps. How did you manage to set yours up initially?
Thanks, so I ended up buying the pump and the cassettes. I'm trying to set it up like your picture, but all the youtube tutorials I've looked up on this pump shows that you need to fill up the cassette first before putting it into the pump. However to do that, it looks like I need the fluid to drip down and let gravity do the work. However, I see that for you, your fluid is below your pumps. How did you manage to set yours up initially?
cpark645
Active Member
Very helpful. I'm not 100% sure what you mean by step 4-5 but I think I kind of understand.
The part I don't get is how you used the green stopper to empty and refill. Could you maybe elaborate on that part a bit?
The part I don't get is how you used the green stopper to empty and refill. Could you maybe elaborate on that part a bit?
Sure it's not very clear.
Once I have everything ready (glued the tubing and everything is good to go) before I put the cassette in the pump I prime it. I open the secondary port on the top of the cassette and attach the syringe. I make sure the white valve is closed and the green lock is not engaged and pull with the syringe. This fills the tubing and part of the cassette. Once the syringe is at max (and I need to pull more) I lock the inlet tubing by engaging the green stopper. I then remove the syringe empty it out, reattach and unlock the green lock. Then keep on doing that until I have primed the cassette well (it helps to turn the cassette to help forcing the air out towards the syringe).
Once this has pretty much primed the cassette, I make sure my syringe is full of liquid and on the port. I lock the inlet tubing with the green lock and open the valve a couple of turns and start pushing to force liquid towards the outlet. Be careful with the pressure you're applying, if it's too much and nothing is coming out open the valve another turn or so. Using this technique you should be able to give a good prime on the outlet as well.
Then I put the cassette in the pump and lock the door. Then it's safe to remove the syringe (cap the outlet) and unlock the green lock on the inlet. Once you turn on the pump it checks for air and if everything is OK you can program it. If not it will give an alarm in which case you have to pull the cassette out and try priming again.
Once the pump is happy I usually do one more step. I put the outlet tube back in the container, set the pump in a high Flow rate and have it pump for a little to finalize the purging.
Of course if you follow gravity feeding it makes things much easier but it was not an option for me.
I hope this makes a little more sense, please let me know if you need more assistance or clarification!
Once I have everything ready (glued the tubing and everything is good to go) before I put the cassette in the pump I prime it. I open the secondary port on the top of the cassette and attach the syringe. I make sure the white valve is closed and the green lock is not engaged and pull with the syringe. This fills the tubing and part of the cassette. Once the syringe is at max (and I need to pull more) I lock the inlet tubing by engaging the green stopper. I then remove the syringe empty it out, reattach and unlock the green lock. Then keep on doing that until I have primed the cassette well (it helps to turn the cassette to help forcing the air out towards the syringe).
Once this has pretty much primed the cassette, I make sure my syringe is full of liquid and on the port. I lock the inlet tubing with the green lock and open the valve a couple of turns and start pushing to force liquid towards the outlet. Be careful with the pressure you're applying, if it's too much and nothing is coming out open the valve another turn or so. Using this technique you should be able to give a good prime on the outlet as well.
Then I put the cassette in the pump and lock the door. Then it's safe to remove the syringe (cap the outlet) and unlock the green lock on the inlet. Once you turn on the pump it checks for air and if everything is OK you can program it. If not it will give an alarm in which case you have to pull the cassette out and try priming again.
Once the pump is happy I usually do one more step. I put the outlet tube back in the container, set the pump in a high Flow rate and have it pump for a little to finalize the purging.
Of course if you follow gravity feeding it makes things much easier but it was not an option for me.
I hope this makes a little more sense, please let me know if you need more assistance or clarification!
cpark645
Active Member
My pumps actually gave out on me... returned an error saying that I need to replace some parts. Luckily, the supplier I ordered from was understanding and is already sending in a replacement.
My setup:
My setup:
cpark645
Active Member
No, just 2 of them.
I've been using the third one, and I'm constantly getting occlusion errors. I made sure the line is not pinched anywhere, so I'm not sure what's going on... it's driving me nuts
I've been using the third one, and I'm constantly getting occlusion errors. I made sure the line is not pinched anywhere, so I'm not sure what's going on... it's driving me nuts
Both me and @twilliard had no problems with these guys. He might be unlucky but usually the sellers guarantee the products (except the battery) since they resell for medical purposes again. This can happen with any product don't jump the gun 
cpark645
Active Member
I replaced the cassette, it is working now. I think I just didn't prime it correctly.
The seller was very kind and is sending me a replacement for free. He said it really is a once in a thousand type case that it breaks down like it did for me. I just got unlucky.
The seller was very kind and is sending me a replacement for free. He said it really is a once in a thousand type case that it breaks down like it did for me. I just got unlucky.
