View Full Version : Litermeter III pump cleaning ,replace rollers?
01/30/2005, 08:59 AM
I have a litermeter III that I use to do water changes with. I cleaned the rollers a few months ago, but did not change the tubing. Today the pump is not pumping, I do not even think the shaft is able to spin inside the three white rollers. This pump is only used once per week . Is there a replacement set of rollers and tubing available? What should be used to clean the black off the rollers?
What is included in the tubing replacement kit?
I would lke to replace the rollers and the tubing and the white ring, on both of the pumps.
01/30/2005, 11:49 AM
I just finished cleaning the rollers and the pumps are working fine again. But shouldnt it last longer then a few months before needing to be cleaned? They are set to pump 5 gallons of water 1 day per week, off the rest of the week.
02/01/2005, 04:32 PM
We are not sure why, when or where the black stuff comes from; it seems to be different for different customers. Use acetone to clean the tubing and rollers. We have a Tubing Replacement Kit for $15 but no spare rollers available. They don't wear out and should just need cleaning.
02/01/2005, 04:40 PM
I cleaned it with acetone, and its working good again. Wonder why not everyone gets the black stuff, its even hard to rub off with the acetone.Maybe new tubing would help.
02/07/2005, 01:08 PM
I wanted to follow up on your dirty pump problem. As I said before, we weren't really sure why some pumps get dirtier than others. We have been developing a new pump, made out of aluminum with exceptional precision and tolerances. We have found that a mere 0.001 inch difference in the size of the rollers or the actual dimensions of the pump head itself makes a big difference in how the tubing is exercised and rubbed upon.
More than an optimum amount of compression only results in excessive heat and tubing degradation. The original plastic pumps from Germany have wide enough tolerances that some tubings end up getting worked harder more than others. This is what we think is making the differences in some getting dirtier than others.
With this in mind, we would like to offer to you, only, one of our new prototype pumps to try out and evaluate for us what you think about it. If you would send your LM3 back to us, we will replace the plastic pump with a new aluminum one.
This is not to say that we are completely up to speed with mass-producing this pump. We just have a few prototypes so far and the new LM3's are still a month away.
Let me know what you want to do.
02/07/2005, 02:40 PM
Can I send you the LM3-RPM instead of the LM3, the pump head on the LM#-RPM gets the exact same black dirty inside it as the LM3 pump. This was i can still use part of my LM3 system while the remote pump module is being changed.
02/07/2005, 04:34 PM
Send it to my attention, include a note with your phone number and return address. I will turn it around in a day.
02/07/2005, 05:48 PM
Ok , it will be on its way.
03/17/2005, 06:32 PM
How is my pump doing? Is it on its way back to me yet?
03/22/2005, 03:49 PM
We will get your pump to you this week, even if I have to steal parts from the prototyping table to make it work!
03/25/2005, 03:38 PM
Your LM3-RPM Pump Module went out today!
I would post a picture for you to see,
but I can't figure out how to do it.
03/25/2005, 06:02 PM
Ok thanks. I look forward to get it running again.
I will take pics.
04/02/2005, 07:24 AM
Got the pump back, took some quick pics of it. It looks nice with the metal. It will be back running on Sunday.
Hers some pics
04/02/2005, 08:46 PM
04/08/2005, 11:48 PM
Is this exchange something that will be offered for a fee to owners of older lm3's or will we need to purchase a whole new unit to be able to make use of this increased precision?
I understand this was a special case, but I am hoping that if the prototypes do work out, if we chose to pay an upgrade fee you would be able to offer this to the rest of us at some point maybe? I am all for upgrades that both increase tubing life, and reliability for when i am out of town (my main reason for purchasing a lm3 over competetors).
tony, excited to hear how it works out, efinately looks slick.
04/11/2005, 01:22 PM
Yes, we will have a upgrade program. Please stand by for details.
02/24/2011, 06:40 AM
any update on the newer pumps ?
02/24/2011, 04:37 PM
This thread is from 2005, lol. The new metal pumps are in use all of the new litermeter products
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