Help Pumping out Pond

I was planning on building one of these (a Rus Pump):
http://www.youtube.com/watch?v=1jpi1_WMYIE

To pump out little the rain water catchment pond into another higher up.
I want to pump it up hill for about 20 meters with about 1 to 1.5 meters of height.

I have about 250 gallons/1000 liters to pump, maybe more. In the long term I need a more automatic solution (wind/solar) but for now it's going to be us pumping it out.

Do you think this pump will block once the 25mm tube is full of water and heading for the top pond?

Thanks,
William

I can now report, having built the Rus pump and having tried to pump water uphill 20 meters with a less-than-1m incline, that in theory it is possible.

In practice, however, unless you need 20 liters of water or less, pumping by hand will be a lot of work. 20 liters took me about 5 minutes to pump.

The pressure build-up inside the pump was so great that water was spewing from whatever hole it could find, mostly near where the pump action was happening and where the 25mm tube connects to the pump.

I'm beginning to think that pumping water by hand over certain distances is impossible.

When I took off the tube, there was no pressure build-up in the pump and it came out rather quickly, much more than 4 liters a minute.

My new strategy is to buy a 1.5hp pump with a built-in motor and do it that way. Kind of a disappointment. The good news is that I will still be able to use the Rus pump to fill 1000 liter tanks that I will place rather close to the pump/water source.

New question: will 1.5 horsepower be enough??

William

This is the kind of model I'm looking at:
http://wanhao.en.made-in-china.com/offer/iMunmdFXZDWr/Sell-Gasoline-Pump-1-0-Inch-1-5HP-WH10CX-.html

There's nothing like asking and answering questions by yourself....

I set up the "Infernal Machine" as I call it. A 150 euro 1.5 horsepower 2-stroke water pump.

It does pump water about 40 meters with 25mm tubing with an incline of about 1 meter or less at a rate of about 40 liters a minute. I still have to tweak the connections, where I think some pressure is being lost, but I'm happy with how it works. I could increase the rate a little if I bought a new, slightly wider tube.

It's the nasty smell of burning gasoline that bugs me, but oh well. For now I'll survive.

The pond is now more or less empty, waiting for more water to come down the hill.

I also modified the Rus pump with a 4m tube ending on it. It pumps about 20 liters a minute. Maybe a little less, because I'd need to pause. I'll use this to pump water into holding tanks for summer use.

I'm also going to make the top pond larger and try to get it to hold water longer with sodium bentonite. That way, maybe in the summer I'll have some water still percolating through the soil.

William