On Tue, 27 Apr 2004 23:56:24 GMT, "Remydog"
wrote:

What are you siphoning from and to? How big is this siphon?

I have a small gravel vac for my aquarium that has a small one-way valve in
it. As with all siphons, the discharge must be lower than the intake. Then,
moving the big gravel pickup part back and forth under the water in a sort
of jerking motion, you begin to get water to flow past the little valve. Or,
if you're so inclined, you can use the old suction method at the drain end.

If you are talking about something larger that is intended to pull larger
quantities of water, say a 1 inch hose, a trick I was just shown might help.
Take a smaller hose and shove it up into the air space formed at the top of
the arc of the siphon. Suck out the air using the smaller hose and the
siphon will start on its own.

If you are talking about something even larger still where that method is
not practical, you need a sort of vacuum breaker system which essentially
taps you in at the top of the arc by letting water pour in to replace the
air.

Remydog

Half barrel garden, without gravel. It's slightly raised above ground
with a patio block, but even then is pretty much level with the
ground. I was trying to siphon to a cleaning bucket. According to
the package, it's a 1"x 6" (2.54 cm x 15.24 cm) siphon.

The half barrel, lined, is 16" (40.64 cm) deep, 26" (66.04 cm) across
on the top, and 19" (48.26 cm) across at the bottom.

Daniel Phillips

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