Lead Salad:
Hey, that idea looks very familiar! Like the one that I first
started using a while back. It's a solid and reliable design, BUT
the problems that I see with it are;
1) Not that I'm a stickler on bends, but that bend won't do a huge amount of restriction if you have a nice torquey pump. What it will do is make the water rapidly accelerate out of the tube and
straight into the top of the cap, which combined with the bend
WILL add up.
2) Having the incoming water entering at the top will give the air
a closer path to escaping...When I tried this, I found that it
works VERY fast/well. The problem is; The water will start a small
fountain stream, which will hit the top of the trap, which will
cause some of the water to flow around the top of the trap's rim,
causing a "rolling-effect" which sort of traps air (depending on
how close the water lvl is to the top) and mulches it up and when
the water falls back into the Trap it's mixed up with air-bubbles.
3) Another thing that I've noticed from my similar trap, is that
if you have the water level too low, the falling water from the
top of the trap will hit and splash, thus pushing air into the
water and eventually it will be sucked down into the inlet.
Again, I'm no expert, and since this isn't exactly like the one
that I made, it might not have any of these problems at all, I
hope it doesn't! Nothing is more frustrating than to spend hours
planning + building something that looks good on paper, only to
find out that once it's built, you've missed something or that it
just doesn't work the way you thought it might? I know all about
that!
If I would change anything, I would take a look at Turbo's design, while it doesn't work super fast, it does work and won't create anymore bubbles than you started out with... Or you could try a "T" style at the bottom, so that the incoming water will still be exposed to the res water and won't fountain up? GOod Luck!