Problems happen. That is why we have to go to work to solve them;)
Good luck with cross shipping idea.
Problems happen. That is why we have to go to work to solve them;)
Good luck with cross shipping idea.
I have a few male quick disconnects. Most of them have been bought from a person here on XS, but a pair of them was bought from PPCS a few months ago. They are the newer ones, since they had the new silver nickel compression screws.Quote:
Originally Posted by Koolance
Anyways, those newer ones appear to behave differently when the plunger is closing. It'll get to a point where the rubber o-ring starts to seal, and then you can feel it having a little more difficulty fully closing. When I disconnected one of those - it didn't close fully, but thankfully it was enough to stop the water. After testing all the male VL4Ns that I got, I found that that particular one definitely has a different 'feel' when closing. The other click into place (you hear the click when the plunger hits the stops) but with this one, it doesn't - it slowly comes to a close.
Could that be because of the oversized o-ring?
A company admitting to a problem quickly...
And then fixing the mistake :up:
u guys see now why i push koolance on recommendations. :)
But thanks for the watch out miahallen...
I had to check my VL3N's.. and lucky for me im still hording onto a lot of the old style.
I wouldn't go so far as saying "quickly", but they definitely are doing the right thing and they did not need a lot of pressure from the community unlike EK and they did not try to shift the blame, so that does earn some kudos in my book. I don't know when I will be able to get mine swapped since they are in my system, although I have plenty that are not.Quote:
Originally Posted by NaeKuh
What about all those euros who are stuck paying for shipping?
Did you read the Koolance message earlier?Quote:
Originally Posted by matari
Quote:
Originally Posted by Koolance
Hey UT. If you talk to our RMA department, they will probably allow you to purchase replacements in advance and refund you for the defective ones plus regular shipping when the bad ones are returned. They would still need an RMA submitted on our website to approve that in advance. (We wouldn't want other customers purchasing fittings first only to find out their QDC's aren't affected by this and then expecting a refund.)Quote:
Originally Posted by Utnorris
Tim
Thanks TIM, I will try and get my stuff together this weekend and submit the RMA and go from there. This would be helpful and I know it's not the usual process, so I do appreciate it.Quote:
Originally Posted by Koolance
When can one order good working QD fittings? Are there enough good ones of each type in stock to order them now? Or would this generate a backorder?
???
Good to see this finally taken care of.
So if I wanted to purchase a safe batch of koolance QDs, then I'd need to order directly from koolance? Otherwise, the inventory of all the other vendors could still have the problematic QDs?
I bought ~ $200 worth of the 4 series QDC from PCS a few months back. I haven't gotten around to using them but now I get the added bonus of finding out if they leak when disconnected. :shakes:
I submitted my RMA on Saturday and I already have an approval and a prepaid UPS label to ship all of my affected male and female QDC fittings to Koolance. I'm replacing 18 fittings...almost $200 worth of product. This kind of move by Koolance might be "expected" by some, but I find their efforts to cure this issue outstanding! Manufacturing mistakes happen...and inconvenience to the customers happen as a result...but it is how your deal with the issue and your customers that defines the vendor. I think Koolance is doing the right thing here. I'm sure it's going to cost them and arm and leg to fix this and they are not hiding from it. In my opinion Koolance is an outstanding company.
I'm very pleased as well. I sent my fittings in for RMA and when they arrived there was an initial problem due to my APO address, UPS won't ship there. But after explaining that I don't have many options being station with the US Military overseas, they agreed to ship via USPS manually....that type of thing is RARE!.....Thanks a million Koolance :up:Quote:
Originally Posted by mdzcpa
Yay - I get to break down my loop. :down:
http://images.thedigitalfoundry.com/...ve_vl4n_01.png
http://images.thedigitalfoundry.com/...ve_vl4n_02.png
http://images.thedigitalfoundry.com/...ve_vl4n_03.png
can someone explain what this means?Quote:
Originally Posted by Phatboy69
another poster said it can hurt?
what's the correct way to disconnect the QDC's?
thanks
is that series 3 or 4?Quote:
Originally Posted by D749
I jsut bought some VL3N and VL4N , which is less likely to have leak problems?
I want to use the VL3N since it's not massive in size but i'm reading the problems are all releated to the 3 series?
---------------------
edit just realised they leak on both 4 and 3 series :(
so can anyone tell me how i can test them for leaks? is the only way to put it in the loop?
I have similar issues. I have VL3N's that I bought about two years ago, that have a black O-Ring. Mine leak when disconnected.
do you disconnect often?Quote:
Originally Posted by Stealth5325
do these things wear out?
I have new ones and I have tested them for leaks and they seem fine, not 1 drop overnight
I had this issue with a pair, advance RMAed them and the new pair has been working fine for at least 4 months now (multiple DC's) with no leaks. It did suck to pull apart my system but Koolance was very pleasant to deal with, and they did an advance RMA quickly.
Yes I purchased a few a while ago and they seemed to work alright although were a bit restrictive. After a few months of being used I disconnected them only to find they didn't close well at all. I stripped them, down to find the cause and was dismayed to find that Phobya used ordinary steel springs (not stainless) which had obvously corroded in the water. One literally fell apart. I guess I was lucky it didn't do it earlier and jam up my pump or something equally disasterous!Quote:
Originally Posted by Utnorris
I wouldn't recommend buying them for this reason.
You know, I think they are perfect. Comfortable, pleasant and fuzzy-nice. My QDCs was OK for a few months - first was a distilled water. After this - Koolance LIQ-702BU-B. And I think it was capital sentence. 27% of propylene glycol turns water into a slippery substance. So when I disconnected two rads, PC case and a filter (total about 14 QDCs), two or three of "F" and one "M" are started to leak. But I had enough time to blow rads and a PC case with air compressor. Water filter has been cleaned by a water (was pretty clean).
After copulation :) of QDCs (rads, PC and a filter) I turned my pump on and saw that flow rate dropped to 175 l/h from 195 l/h. I think that internal seals are shifted so now they can't fully close and open the valve. but I don't have any leakage when F and M are coupled, because M got external sealant (elastic) that never comes in contact with the liquid.
After some time I will install new QDCs, but I think after few months situation will be the same. (but I don't have any choice)
Now that I found this thread I figured I would update it:
So today I experienced the power of a The VL3N models in my loop that had a failed pump. So when I went to remove the hard to reach VL3N-FG I got a leak so I quickly reconnected it and tried to make sure I did not loosen a fitting. When I tried again the QD had a very hard time separating from the male end (felt like I was trying to overcome a vacuum while the coolant was flying out). Note that this was the second half of the loop that I disconnected and my other QD connection had no issues.
After removing it from the line end and replacing it with an older VL2 series I tried it again to see what the issue was. After that it did not work at all and I can see parts of an Oring on the rim.
Too bad I had not seen this thread in the past or I would have been more careful before removing them just encase...
On a related note has anyone tried the new QD3 type?
Still don't see the value in these unless your a modder or tester. Zero, you run these and a bazillion other complicated goodies in a simple watercooling loop. Even NASA knows when to cut back on the goodies that cause issues and nothing but added complexities and failures.
My input to your overall problems.
...really now? I use these to allow my case to split in half so it can be moved. My computer consists of two full tower cases put together and when the computer is moved it splits in half so each case fits behind a car seat. The design also lets me change parts easily due to only the components being in one case and all of the cooling system in the other. Then I have 1 flow meter on each loop to detect problems like my recent pump failure before something else goes wrong. In addition the connections for the QDs are in the WC tower to contain any spills related to them (looks like that was a good idea). Clearly my build is out of control!
The only 2 recent problems I have had was a pump that burned out (355s are known for this) and some QDs that failed (VL3N is known for this). There are plenty of people out there that have much more complex loops and do not see some big increase in random failure. Yes logically the more stuff you got the more can go wrong on the basis of pure chance but really I think if we are going to get caught up in that why are we WCing to begin with?
I think it is a bit crazy on these forums in particular to just assume that I got a bunch of random crap in my loop just for the sake of having it. Your right on one thing, all I do have is a simple WC loop (well 2 independent ones) pump->rad->QD->WB->FlowMeter->QD->Res
As for these "bazillion other complicated goodies" what if I did have some random crap in there just to see how it works, this is xtremesystems!?
In the end I do not think it wise to just blindly assume that someones loop has random crap in it when you know nothing about it.
http://www.ibisgaming.com/media/Doki...3_12.52.26.jpg