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A simple tool I have used for over 20 years that should be in everyone's water supply tool kit.  I have primarily used this to transfer water from my 55gal water drums to my cistern at my cabin, but have also used it to pull water from stream/river pools and lake water to use for boiling wash water.  If you don't have one, I highly recommend spending a couple bucks and just toss it in the "I'll be glad I have it when I need it" stack of stuff.  It's one of those simple things you hope the guy that came up with it made a million bucks from it.   It was the first thing I bought to put in my TT supply kit and will be kept with my fresh water supplies.  I got mine (four pack) at Walmart but see them on Amazon, eBay and Harbor Frieght; most listings have it already connected to hose.

Copper Jiggler Siphon

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Red Barchetta posted:

Question - If the jerrycan is sitting on the ground is this siphon strong enough to transfer the water uphill into the trailer/camper?

I currently have (15 years now) and use a drill-powered fresh water transfer pump.  It transfers 6.5 gallons in seconds.

It will not siphon uphill.  Like any siphon, it needs to be lower than liquid being siphoned.   I used it with a 7 gal water container shown here  when my back went out and I could not lift it.   I use it all the time to empty a 55 gal drum of water into my cabin cistern in about 10 minutes. when I draw water out of the stream, I find a place that is at least level with the water and have no problems pulling it.   I have also used it to siphon gasoline from my truck to a container for my lawn mower.  

How it works is simply a marble crimped into the copper tubing that you when you move down it lets water in and blocks water escaping when you pull it up.    In my 7 gal it takes about 8 to 10 of these up/down movements to pump enough into the hose to get the siphon started.

As a kid I had to set siphon tubes into ditches to irrigate crops.  You place your hand over the end of the tube to pull the water up and then just plop it down over the ditch bank.  That skill has stayed with me over the years and anytime I need to start to siphon I just put my thumb over the end of the tube to create a vacuum.  Same idea as the marble but on the other end of the hose!

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