I need to pump water 100 meters uphill to my house from a spring. What is the best pump for this application ?

Question

Can I use a centrifugal pump at the top of the hill and suck the water up if I have a flooded suction ?

Answer 1

I will suppose that the 100 meters is elevation change and not distance. If it is distance, resubmit the question and state the elevation and the distance.
Ideally, cold water could be lifted (by suction) only a little less than 11 meters (33 ft.) by ANY device or means. This is because of the vapor pressure characteristics of water.
The suction lift of a commercial pump, however is usually limited to only around 6-8 meters of cold water even when it has been primed. This is because of dynamic energy losses in the pumps. Some specialty pumps are designed for high lift, but they will not do you any good in your desired applicaton because they will always be less than about 10 meters..
You will need a high speed centrufugal pump(s) installed. One at the spring plus another one part way up the hill , all to develop enough pressure to : (a) push the water up to a 100 meter (310 ft) higher elevation; (b) overdome the fluid flow energy losses in the pipe and fittings (estimate 5%) ; (c) furnish a usable operating pressure (35 psig) at the points of usage.
Your pump system will need to develop over 175 psig. This will not be found easily. Even two pumps in series at 90 psi each will be hard to find, but they are available from pumping specialists. They might need to be two-stage. Be prepared to see a big price tag.
Selecting the volume of water to be pumped is another issue.

Answer 2

This Site Might Help You.

RE:
I need to pump water 100 meters uphill to my house from a spring. What is the best pump for this application ?
Can I use a centrifugal pump at the top of the hill and suck the water up if I have a flooded suction ?

Answer 3

What is the actual vertical rise you are pumping? Pumps give a rating on them that show to what height they can pump. A regular pond pump will only go about 4 feet vertical until it just stops pumping any higher. A self-priming pump with a magnetic drive would work well and have lower maintenance.

I included a link that should help you figure out what pump you should need and one that sells pumps and accessories for the do-it-yourselfer.

Answer 4

Yes you can. However, I would feel more comfortable using a large capacity centi pump closer to source and an accumulator at the house with a good quality diaphram pump and a pressure switch. be sure your centi, accumulator and diaphragm pump can handle the load when you are doing laundry and washing dishes, also your going to want to run a relay from your accumulator to your centi pump to shut it down when your accumulator is full.....