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8 days ago

No water coming out

Hello everyone! The system is a Milli-Q Direct-8.

The issue: when I press the QPod point of use gun, no water comes out.

More info: However, I hear the pump working and the "click"when I press the trigger. Using the QPod dispensing function key does not work either. The system started outputting less water after someone dispensed 44L at once. After that the change QPak filter came on. I changed the filter, started dispensing water with the BioPAK filter still on the dispenser, water started coming out, I set 10min timer and walked away. Once I came back (after 10min), no water was coming out. Since then, no water has come out except once when I mimicked me changing the QPak filter again; where the system dispensed water for a few minutes.

What I have tried:

-Changed the whole QPod and Gun with a working one = no change

-Went to the MilliQ technical menu and ran all the tests and no issues detected

-There are no warning signs displaying; green LED shows in the system

-An electrical engineer passed by and checked different aspects; he said the issue does not seem to be electrical.

Any help will be greatly appreciated!



6 days agoReply from Everhart
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6 days agoReply from Joshua A. Price
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7 days agoReply from learning_science
avatar placemark I appreciate the intent; thank you!

7 days agoReply from Paul Moyer
avatar placemark I just wanted location too see if I Knew the Millipore rep in your area, unfortunatley I do not.

7 days agoReply from learning_science
avatar placemark I will see if I dare to put my hands in there !

I am located in Auburn, Alabama (Auburn University).

I have reached out to Millipore asking for a quote for technician + potentially changing distribution pump; however they have not gotten back to me yet.

Thank you for all the help Paul.

7 days agoReply from Paul Moyer
avatar placemark When the pump is on the flow should be strong so be careful, if the flow is trickling or looks weak then the pump is most likely worn. My suggestion would be to call for Millipore service at this point. Where are you located?

7 days agoReply from learning_science
avatar placemark I will try, but it is very intricate.

How would I know if the pressure is enough?

Thank you

7 days agoReply from Paul Moyer
avatar placemark If you can access the pump, you could try removing the outlet side to see if it has enough pressure. Just be cautious and don't get any of the electrical connections wet. The pump could be turning but may have lost its efficiency.

7 days agoReply from Paul Moyer
avatar placemark If you can access the pump, you could try removing the outlet side to see if it has enough pressure. Just be cautious and don't get any of the electrical connections wet. The pump could be turning but may have lost its efficiency.

7 days agoReply from learning_science
avatar placemark Thank you for teh reply paul.

The RO water tank is full (confirmed by the instrument as well as visually). Also, I unplugged the tubing from the QPod point of use system and once I press the gun "trigger" water comes out of one of teh tubbings (the water will not come out once I plug tubbing back, and as I mentioned when I put in a working unit QPod, water won't come out either).

FYI the unit is about 8 years old.

If I have an airlock, how do I get rid of it?

Thank you

MilliporeSigma - Direct Q 3/5/8
by MilliporeSigma

MilliporeSigma - Direct Q 3/5/8
DESCRIPTION
Produce Type 1 and Type 3 grade water directly from potable tap water

Direct-Q systems deliver both pure and ultrapure water directly from tap for use with a wide variety of applications in your lab. With the Direct-Q range, you can choose the solution that’s right for you. A number of versatile solutions exist to match your specific needs, including systems with multiple flow rates and corresponding storage volumes that are equipped with integrated or external reservoirs and designed for under bench-, bench- or wall-mounting. In addition, you can fine-tune your ultrapure water quality to match your applications. The systems’ built-in 185/254 nm UV lamp reduces the levels of organics for critical applications, and also destroys bacteria. You can add Application Pak polishers to remove specific contaminants such as bacteria, particulates, pyrogen, nucleases, endocrine disruptors or Volatile Organic Compounds. The systems’ versatile remote dispenser helps you stay focused on your work by providing ultrapure water delivery where you need it. The remote dispenser can be placed up to two meters from the Direct-Q system, and are available in free-standing or wall-installed models. Alternatively, systems in the Direct-Q range are available with an integrated dispenser for use on the benchtop. - See more at: http://www.millipore.com/catalogue/module/c9185#0

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