Gurgling POC overflow

mark · #1 07-22-2009, 01:26 AM

well in a skimmer salt behaves different than fresh so maybe so with a Durso.

Either when tuned my Durso, started with the water surging and gradually enlarged holes until the surging stopped, but still a little noisy. Kept going bigger then all of a sudden, quiet.

With each 2" Durso can fairly quietly flow between 500 and 1000gph and the hole size is only slightly bigger than 1/8".

banditpowdercoat · #2 07-22-2009, 01:30 AM

Whoo, we knew, if left alone long enough, you would figure it out

But ya, SW and FW will flow different, just like in a skimmer

Doug · #3 07-22-2009, 01:36 AM

LOL Dan.

The surging noise is something else Mark. Now thats enough to make one go back to sumpless.

Guess I figured the air hole w/controller was large enough but apparently only for fresh water.

mark · #4 07-22-2009, 02:22 AM

once tuned there should be no more surging. now the gurgling into the sump no way around that with a Durso (or Stockman or Hofer as all draw air). Truly silent, need to go to the Herbie (no air, no noise)

Doug · #5 07-22-2009, 01:03 PM

Not bad in the sump. I have it below the water level, in a filter sock. Can hear it but fairly quiet, and when the skimmers running cant hear it at all.

Now thats a problem in itself. Going to build an air silencer soon and if that does not work going to buy a new one thats silent.

banditpowdercoat · #6 07-22-2009, 03:47 PM

Which skimmer is that, Doug?

Doug · #7 07-22-2009, 05:00 PM

Its just the large model Coralife skimmer. Skims well, esp. for my small tank but pump vibrates and hums noticeable. Perhaps once I silence the air intake it may be better. The price was right, {a trade} and I was the skimmers original owner, so figured I would give it a try.

Hmm. A nice quiet BK mini may do the trick.