The pump noise is likely a result from the rigid plumbing attached to it, installing rubber couplings will help if you can squeeze them in. I see space on the output for sure but not so much on the input unless you remove your union valve. However removing the valve is an option, a rubber coupling can serve the same purpose as a union and you could keep a threaded plug handy to replace the purpose of the valve, just not as convenient.

You can get pipe thread compound for threaded joints which I find works good on pumps. Might help with leaks, Teflon tape isn't as effective and using too much can crack the pump housing. The pipe compound is a paste and you can't use too much.

Thanks everyone...I've got my fingers crossed on running them a bit for noise reduction. The Vortech does seem a little (key word "little) quieter today.

I never got a chance to run the return pump more than a few minutes as it was just filling my tank.

Because everyone likes pictures...she's still pretty cloudy.
http://i485.photobucket.com/albums/r...ps0cdb291b.jpg

Wahoooooo!!!!

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHH


much better:razz:

Okay...in the name of progress, I got to working on the two Tunze pumps tonight. They are not wired up pretty, but they are running. Sadly they are noisy as hell. They make the Vortech seem quiet. These were bought from a fellow Canreefer about two years ago after being used for only two months by him. I'm running them through the 7096 controller.
Feeling the dirty looks from my spouse burning through me over the noise...I ordered the new c-clamps that these 6105's now ship with when new...along with a spare impeller in case that will fix it.

that's really surprising about the Tunze... really too bad.

Are these new enough to have the one-piece impeller assembly at least?

You know what, I'm not sure. I have ordered some parts as "spare" but plan to take the noisiest of the two and pull it out to "rebuild" it again and at that time I will check out the details. Tunze makes so many changes so fast that I couldn't keep up. The pumps are at least 3 years old from manufacture.

Noisy Tunzes??? :eek: Wtf. My 6055 is from the bfirst batch that came to Canada in 2008(?) and it is silent same with the two newest model 6105 I recently bought. I have had others over the years too, and have never had a Tunze that could be classified anywhere near "loud". The only thing I can hear is if I put my ear up to the pump I can hear it ramping up in power, but they definitely don't hum or rattle. Have you inspected the propellers and housing to make sure they haven't been dropped or had sand sucked into them?

As you might have seen in prior postings, I have these too close to the sand bed but I thought about that and tried the pump free of the c-clamp and it's still chattering like a son of gun. I will take it apart tonight and re-clean it in Vinegar and see if something I haven't spotted is giving issue.

More frustrating today is that I called Reeflo as they didn't return my e-mails. I didn't get to speak to Chris, but they were pretty rude in telling me that they discontinued the Blackfins and not only don't they have any spare parts but that the pump never really performed the way it was quoted to and that I will probably always get less flow than expected.