Alien Invasion - I want my pond back !

MossRoad · May 22, 2015

I did a bunch of science fair experiments with siphons when I was a kid. I still use siphons about every other week to drain our pool cover of rainwater. Also transferring gasoline from a vehicle to a can. Simplest method is as I mentioned above. Only requires one valve if the pipe is larger than your palm. No valve if you can cover the pipe with your palm. Watch this video. Its the closest I can find to what I do. Siphoning begins at 30 seconds. Guy starts 20 siphons in a couple minutes. No pumps. No valves. Don't over-complicate things.

MossRoad · May 22, 2015

Here's another one. Guy just uses his thumb. Open it when shoving the pipe into the water. Cover it when drawing it out. Open in. Cover out. Your thumb is the check valve. Works great for gasoline, too. Exact same principle with larger pipes.

https://www.youtube.com/watch?v=2j1FoLDcwZk

txdon · May 22, 2015

Moss, What is the longest pipe that method would work with?

SPYDERLK · May 22, 2015

txdon said:
Moss, What is the longest pipe that method would work with?

Approx zero in relation to 200 yds of 2".

MossRoad · May 22, 2015

txdon said:
Moss, What is the longest pipe that method would work with?

Length isn't an issue for the most part. Lift height is, however, an issue. It has something to do with the barometric pressure of the liquid and gas in the liquid. For water, its something like 30'. Any more than that, and the air bubbles will be sucked out of the water, creating an air pocket at the highest point in the siphon and stopping it or something like that. It's been a while. Anyhow, there's a whole massive formula to figure it out.
Siphon - Wikipedia, the free encyclopedia

texasjohn · May 22, 2015

SPYDERLK said:
Approx zero in relation to 200 yds of 2".

Interesting....and the reason would be...? Or are you going to allow future thread revelations to enlighten us?

Redneck in training · May 23, 2015

Good reading.

dstig1 · May 23, 2015

I think his point is obvious. Can you lift and work with 200' of 2" like in that short video? No, of course not. Thus it will require some other method of priming. Like the pump noted by the OP. But yes, this is an interesting TBN drama... Subscribed!

Coyote machine · May 23, 2015

I actually turned OFF the TV to read this!

I'm an avid multi tasker... and I was going to go to bed early, 'cause I'm whipped tired from tractoring all day, but here I am, and no closer to who the aliens are. Is there a DVD or something to skip a chapter ahead?

MossRoad · May 23, 2015

dstig1 said:
I think his point is obvious. Can you lift and work with 200' of 2" like in that short video? No, of course not. Thus it will require some other method of priming. Like the pump noted by the OP. But yes, this is an interesting TBN drama... Subscribed!

I'd loop the hose half way down the hill and keep both open ends by the pond. Then I'd just work a short loop into the pond, dipping it full and lifting, dipping and lifting, until the hose had enough water to get over the hump. Then I'd plop one end into the pond and drag the empty half down the hill. It will fill on its own by the time you get the end extended. Piece of cake! :thumbsup: