Alien Invasion - I want my pond back !

[mikefromnh]

The MS361 is awsome!!!:thumbsup:

The ms361?

 

[MossRoad]

I refer you to Post #72 where Eric states:
Perhaps I should have explained earlier that I had to get the water up a small hill, across the top and down the other side before gravity would become my friend. For the first 100 yds it is on a constant rise.

You better be in really good shape to make the football field-long trek up that slope numerous times while wrestling with a pipe. :laughing:

But seriously, if you managed to fill the far end down slope pipe with water one slug at a time without an EMS call, once you start to fill the uphill running pond end, you have a gravity problem. The water in the pipe will have enough head to flow out when you dip the open end into the water. It's like you are expecting water to run uphill in order to fill the pipe.

If the pipe was a bit flexible and somewhat durable, it could be flooded end to end in the pond, close a valve at each end and drag one end over the rise with a tractor.

You don't have to fill the uphill running pond end.... :cool2:

 

[4570Man]

After seeing this thread, I decided to try to siphon out a small pond to clean it. I used a broken flower pot as a filter, and a garden hose. There was a big hill behind the pond, so it wasn't a hard job. It had been going for a while when I took the picture. The pond was full when I started.

 

[MossRoad]

Here's a nice video of a guy starting a siphon with solid pipe, a tee at the top, a shutoff valve at the discharge end, no valve at the inlet, and a 5 gallon bucket to fill the downhill side of the pipe. You don't have to fill the uphill side!

https://www.youtube.com/watch?v=8rgpRJ1xCeM

 

[dave1949]

Here's a nice video of a guy starting a siphon with solid pipe, a tee at the top, a shutoff valve at the discharge end, no valve at the inlet, and a 5 gallon bucket to fill the downhill side of the pipe. You don't have to fill the uphill side!

https://www.youtube.com/watch?v=8rgpRJ1xCeM

It depends. If the downhill side runs out of water before the uphill side fills, you will have nothing but water running back into the pond that made it partway uphill. He may have explained that in the video but listening to those is torture for my hearing.

 

[4570Man]

A bigger siphon would do the trick.

 

[MossRoad]

It depends. If the downhill side runs out of water before the uphill side fills, you will have nothing but water running back into the pond that made it partway uphill. He may have explained that in the video but listening to those is torture for my hearing.

It doesn't depend. I don't think you understand how siphons work.

 

[MossRoad]

A bigger siphon would do the trick.
View attachment 426831

Yeah, I saw that video, too. Pretty neat. :thumbsup:

Several folks mentioned putting an upturn at the end to prevent air bubbles from percolating up the pipe to the top and killing the siphon, but with that amount of flow, it would seem pretty hard for any air bubbles to fight that stream.

 

[Redneck in training]

Here's a nice video of a guy starting a siphon with solid pipe, a tee at the top, a shutoff valve at the discharge end, no valve at the inlet, and a 5 gallon bucket to fill the downhill side of the pipe. You don't have to fill the uphill side!

https://www.youtube.com/watch?v=8rgpRJ1xCeM

It depends what is the length of each leg. If the pond side is long relative to downhill side you have to fill both.

 

[4570Man]

Yeah, I saw that video, too. Pretty neat. :thumbsup:

Several folks mentioned putting an upturn at the end to prevent air bubbles from percolating up the pipe to the top and killing the siphon, but with that amount of flow, it would seem pretty hard for any air bubbles to fight that stream.

Even my 50 foot garden hose sucking out of this crap didn't get air bubbles. It sucked until it ran out of water.