Can't find 18-year old tool

[PoolDoc]

Interesting concept and design. I'm impressed with your 3-D drawing knowledge.

But . . . I've never seen such a device, though there've been quite a few times when it would have been handy

[waterbear]

new to me. Not really sure how it would work either.

[PoolDoc]

Suction flow over the lower blades turns the upper blades, which in turn pulls air and water through them, till the hose is primed . . . at least, that's what it looks like to me.

[waterbear]

Suction flow over the lower blades turns the upper blades, which in turn pulls air and water through them, till the hose is primed . . . at least, that's what it looks like to me.

Yes, but I would think that the vacuum needed to pull all the air out of the hose could not be created in this manner. I understand HOW it's SUPPOSED to work. I just don't see it actually working.

[PoolDoc]

My guess is, to actually make it work, the flow paths would have to be somewhat different than shown.

[BigDave]

From the description, I believe the doo-dad pushes water into the vaccum hose instead of trying to suck the air out. However, as drawn the doo dad would pull on the hose.

[TomC]

I have something that looks almost exactly like your drawing. It's orange, with 2 white fan blades inside. They seem to be attached by a shaft running through the middle of the device, and when I turn the blades of one, the other turns too. The diameter of the ends are different sizes though, unlike your drawing. One end is about 1 1/2 inches in diameter, the other is close to 1 3/4 inches. It's been in my shed forever, and I may have used it once, although I really don't remember. You can have it if you want it. Maybe a moderator can help us facilitate me sending it to you. Not sure what shipping would would be, I'm on Long Island, in NY. Worth a shot I would guess. The price is right, free, lol.

Tom

[jcg31]

The suction from skimmer sucks water through the lower turbine into the skimmer and towards the filter causing the turbine to turn, because it is a fixed spindle the top turbine is also turned and it sucks water into the device and pushes it into vacuum hose through the end attached to the vacuum hose. Again, the drawing is how I remember it and is probably lacking some key detail that would make it make immediate sense to all. I can only tell you at this point that it worked great for hundreds of pool cleanings - - until I lost it.