Question
Hi Carlo:

I'm in the process of designing a small water "feature" or fountain.  It will sit in a container type pot that is square and about 19" across.  The pump will be inside this container and pump water up to a height of around 8 inches above the water surface.  Tubing would be probably 1/2 inch flex or copper.

The water would then cascade or bubble up and down...more like trickle down some flat stones.........just making a splashing noise.  This fountain would be similar to the small indoor office ones, except outdoors.

I tried a 140 gph pump with a 2 foot piece of flex 1/2 tubing and it was way to much.  Plus the pump was too noisy.

I'm looking for a "bubbler" pump that is very quiet.

Maximum height from top of water:  8-12"
Tubing inside diameter:  1/2" flex poly or rigid copper
Height of water after it leaves the top of the tube:  1"
Size of flat rocks:  Stacked to 8-12" in a "pyramid" style about 1 foot x 1 foot at base.

I'd also appreciate any brands you can suggest for durability and quiet operation.

Thanks,

Hope to here from you.  

Answer
Hi Mike,

I would try a pet store for pumps used in fish tanks.
Unfortunately I'm not home right now and I would not have access to my pump chart. In any case, you could submit your query to www.pumpworld.com.
Sorry for not being able to help you at this time.

Good luck

Carlo