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Alphacool pump VPP755 review of noise issues and problems - Page 18

post #171 of 272
every line is new sentence /solved /decrypted :ppp
post #172 of 272
@Darkwizzie.
I apologize for the improper punctuation, It was written from my phone and I was using speech to text.

As to what I said though, I just think it seems people just are sharing the same problem everyone is having with the washer issue and not a solution or an idea for one, maybe we can discuss fixing it or share results of an attempted fix.
If that is a bad idea then I won't say anymore on the topic, I just felt that maybe there was a better way to find a solution to a problem than just coming in and telling how there washer fell off and that's it, I don't know maybe it's just me.
For anyone that wants to know I was offered replacement washers if I bought them again.
On another part though, I am surprised that it did not do anything other than make a sound when it came off, and it makes me wonder if it would be ok to just order them again and use nylon washers until there is a permanent solution.
Since I am using the aquaero 6 It might just be better to go ahead and get the aquacomputer D5 and be done with it, especially since the Vpp755's have already been returned.
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Brandon H.
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post #173 of 272
Quote:
Originally Posted by havoc315 View Post

@Darkwizzie.
I apologize for the improper punctuation, It was written from my phone and I was using speech to text.

As to what I said though, I just think it seems people just are sharing the same problem everyone is having with the washer issue and not a solution or an idea for one, maybe we can discuss fixing it or share results of an attempted fix.
If that is a bad idea then I won't say anymore on the topic, I just felt that maybe there was a better way to find a solution to a problem than just coming in and telling how there washer fell off and that's it, I don't know maybe it's just me.
For anyone that wants to know I was offered replacement washers if I bought them again.
On another part though, I am surprised that it did not do anything other than make a sound when it came off, and it makes me wonder if it would be ok to just order them again and use nylon washers until there is a permanent solution.
Since I am using the aquaero 6 It might just be better to go ahead and get the aquacomputer D5 and be done with it, especially since the Vpp755's have already been returned.
I say be done with it and buy a D5. Unless there is no other option I can say I would t buy anything from alphacool after this. Why should their customers have to do R&D to fix their product after they have verbally deficated liquid hot poop all over their customers.
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post #174 of 272
Thread Starter 
Quote:
Originally Posted by havoc315 View Post

people just are sharing the same problem everyone is having with the washer issue and not a solution or an idea for one, maybe we can discuss fixing it or share results of an attempted fix.

 

You may want to actually read the thread, you'd find both proposed solutions and results ...


Edited by mastabog - 4/23/17 at 10:33am
post #175 of 272
Quote:
Originally Posted by C00LM4N View Post

Nylon washer seems to be the only one solution so far.
Unless you run the pump constantly at max rpm it should last for a long time.

So, I talked to the pump guys at work. They couldn't say why the pump was designed this way but they had a few suggestions(they also said it sounded like a flawed design). They said you could try a kevlar washer. Also, a split washer could be part of the problem. When you bend a nylon split washer it could make it wear unevenly and would actually accelerate wear of the nylon washer. Also, the purpose of the metal washer could be that it is what it supposed to rotate against the nylon washer, not the ceramic post. It would depend on how polished the metal washer is. What you could try is some super glue (or another suitable adhesive) to fix the nylon washer to the ceramic shaft so that the nylon washer will rotate on the metal washer and not the ceramic shaft.
post #176 of 272
Well, it comes as no surprise that I discovered one of my v1 pumps is already making a buzzing noise. I am glad I had read this thread so I knew to keep an eye on them.
I have two separate loops, each with one pump, and I have only been running them for about two months, pretty lame.
I already bought the nylon washers that coolm4n suggested earlier in the thread, and I have a couple of v2s in the mail that should be here soon, as I wanted the full pwm control. If the nylon washer doesn't solve this issue long term, then I will admit defeat and going with some aquacomputer pwm D5s, which it looks like I should have done in the beginning. Its a shame, as I liked the performance and how quiet the vpp755s are before they go bad.
post #177 of 272
Quote:
Originally Posted by loktite78 View Post

So, I talked to the pump guys at work. They couldn't say why the pump was designed this way but they had a few suggestions(they also said it sounded like a flawed design). They said you could try a kevlar washer.
I've already spent ~$50 for different washers (PTFE are expensive ones). Trying to get custom sized kevlar washer will kill me smile.gif
Quote:
Originally Posted by g0barry View Post

I have two separate loops, each with one pump, and I have only been running them for about two months, pretty lame.
What speed did you run it? Two months is a great luck.
Edited by C00LM4N - 4/26/17 at 10:10pm
post #178 of 272
Thanks for doing so much of the work before mine failed. Did you have any guess for how long you thought the nylon washer would hold out that you were trying? I didn't know kevlar washers were a thing, but let us know if you find something that size.

I am running both pumps at the "2" setting, so not really stressing it or so I thought. I was hoping it would run longer than two months at such a low setting! Also, both loops only have device being cooled, a gpu in one and cpu on the other, with 480 worth of rad space per. The cpu block and the gpu block are pretty low restriction too.
post #179 of 272
It will definitely last longer than original one, but nobody knows how much longer.
When you wrote that your pumps worked for two months I guessed that you were running them at no higher than 2nd speed smile.gif
Really if 2nd speed is enough for you there is no need to use VPP755, because D5 even at 3rd speed is silent.
post #180 of 272
Oh, good to know, thanks. I am new to watercooling so this was my first build. I didn't really have any idea what setting I needed to run at. I had read these pumps were stronger and quieter than the d5s, so I thought why not get the newer stronger one. I knew using a new design was a risk, but didn't think worst case they would fail so quickly! Now I now I never needed the extra pressure etc and this was obviously a mistake.

I am probably going to be changing to a single loop with two pumps in series when I have to drain everything to install the new pumps, so even more reason d5s should be able to get the job done.

Kind of torn now, I could probably return the new v2 ones and get some d5s, but the nerd in me wants to try the nylon washers and see if would hold up.
I might just get those Aquacomputer d5s, I don't like to have unexpected downtime on my main workstation and those are supposed to be pretty nice D5 with PWM.
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