I've never seen the AS skimmer up close and personal, but in a swimming
pool that door also keeps the crud from bouncing back into the pool. Course
there is more wave action in a pool than most ponds, so does the AS skimmer
float door work differently? ~ jan
On Tue, 22 Apr 2003 13:10:27 -0500, "Cybe R. Wizard"
wrote:
On Tue, 22 Apr 2003 08:20:08 -0500, Lee Brouillet wrote:
Hmmm . . . I'll take your word for it, but I don't understand (not
the FIRST time, believe me!). F'rinstance, the skimmer opening is 4"
high. The door floats on the surface of the water level, inside the
box. If the pond is full, all 4" of space is filled with water. If
the water is low, maybe only 1 or 2" of water goes in, and the door
*still* floats on the surface. Why does it make a difference? (not
arguing, looking for enlightenment G)
Lee
It took me a while to see it, too.
The skimmer door floats on the surface of the water, thereby limiting
the amount of water that can enter the skimmer below the top of the
door. Yes, a bit can (and does) still enter around the edges of the
skimmer door, but the vast majority comes in /over/ the top of the
door. It's easily illustrated by using some suspended particulate
matter dropped in front of the skimmer both with and without the door
on. Without the door you may note that the flow is not as great and
the particles move toward the door from all depths at pretty much the
same rate. With the door attached and floating correctly the particles
move /rapidly/ on the surface and little or not at all at any depth.
The purpose of this is to keep the whole body of water cleaner by
skimming just the surface of the water. Gets the trash before it
drops to the bottom.
I had to actually /do/ this experiment before it fully took in my
excuse for a brain.
Cybe R. Wizard
See my ponds and filter design:
http://users.owt.com/jjspond/
~Keep 'em Wet!~
Tri-Cities WA Zone 7a
To e-mail see website
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