Originally Posted by skupples
I guess i'm lucky. have 90s on in and out... actually, the in has 3 90s from res to pump.
Nice one, it would be great to see an image of that. It might help me.
Originally Posted by BramSLI1
Are you sure that you didn't have your pump sucking in air when you first started it? This is the most common reason why these can become noisy so quickly. Running these pumps while dry for even a few seconds can damage the bearing and cause them to become noisy due to a bearing that's no longer balanced. With the way that your pump is fed by that angled fitting, I'd say this is likely the case.
I'm sure the pump did not suck in air. Despite the bend, the pump was easily saturated in liquid at all times (I can see because my pump top is acrylic).
Originally Posted by Gabrielzm
Quick question. Have you try to place the pump pointing up and not sideways. You mention that moving the pump around didn't change the noise thing. d5 pumps are very quiet and should not be like that specially with a shoggy sandwich below it. Seem like rma time. Did you got that one new? How long have been running?
good luck mate.
Been running for 6 months.
Originally Posted by Arm3nian
There is a chance your configuration is causing it. You have a 90 degree right on the input, and the output is 90 degrees vertically. I fixed my pump noises just by the config and changing the input/outputs. Try having the res feed directly into the pump without major bends and the output to not be straight up.
I'm not sure how I could change my configuration in future?
Also, I've heard that once you reach a certain point in fluid movement speed, you don't see performance benefits. What speed would you guy's run my D5 at for my loop?
I currently have it set to 3.5 and it is very quiet now. Anything higher presents issues.Warning: Spoiler! (Click to show)