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re: Noisy Overflow

Take a look at http://members.xoom.com/reefland/  Click on "Hardware Used"
then "Sump Configuration" and "Overflow" (I'm not sure what the direct link

He uses a standpipe configuration the keeps the intake continuously
submerged and virtually silent.  With a normal standpipe, he said it sounded
like a Niagra Falls.


> > due to the amount of water splashing they create. Since you are starting
> > scratch, why don't just drill a hole in the back panel, just below water
> > level,
> > and fit it with an elbow pointing upright ? Fit the elbow end with some
> > of strainer and that's it. No syphon to start, no cumbersome equipment
> > clean inside the tank.
> Point well taken.  However, my biggest concern is slurping noise.  A nice
> corner overflow with a 1" bulk head on the bottom, for example, will allow
> water to trickle down the sides of the overflow and then down the sides of
> 1" tube to the trickle filter.  With my marine setup, I purchased one of
> retrofit kits.  The downtube was only something like 1/2" or so.  It made
> slurping noise that drove me mad!!!!  How would you prevent such noise
> happening to something like a 1/2" PVC fitting.  I forsee the water slowly
> trickling down the side until the water level rises a bit.  There would be
> critical point where the air entering into the PVC pipe would stop and a
> siphon would be created.  Water flow would increase dramatically until the
> siphon was broken.  *slurp* *slurp* *slurp*  Unless you are suggesting
> the PVC bulkhead through the glass contain the straining device fit
straight on
> without any elbows....so that water would just cascade down the side...