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Hi all. This is my first post so please forgive me if I write anything wrong or post on wrong forum.

In the attachment below I have a problem. I need to buy a water pump (PUMPA in img) that works on 12 or 24 volt DC current being powered with solar panels.

This pump must be able to fill a water tank (REZERVAR in img) in 10 hours 1000l (1 m^3) of water (VODA in img).

Distance the water must travel is around 40 meters and has to climb 6 meters in air.

I have found some formulas online and one looked interesting:

density of water * g * height => 1000*9,81*6 = 58872 Pa or N/m^2 ~ 8.54 Psi

now the pump i've found on ebay: pump

has 100 PSI. It is 12v DC powered, and has 5A amp draw.

I wanted your opinion on this problem, If I have the right formula, are the calculations ok, is this pump more than enough to fill the tank in 10 hours, how big must me the solar panel system, how strong must be the car battery to hold that much energy, if you have some cheaper or more convenient solutions, what are the potential risks and problems I did not think of, and any other sugestions you may have.

http://img703.imageshack.us/img703/9431/imgwdw.jpg [Broken]

IMAGE VIEW LINK

Thank you,

Mario

In the attachment below I have a problem. I need to buy a water pump (PUMPA in img) that works on 12 or 24 volt DC current being powered with solar panels.

This pump must be able to fill a water tank (REZERVAR in img) in 10 hours 1000l (1 m^3) of water (VODA in img).

Distance the water must travel is around 40 meters and has to climb 6 meters in air.

I have found some formulas online and one looked interesting:

density of water * g * height => 1000*9,81*6 = 58872 Pa or N/m^2 ~ 8.54 Psi

now the pump i've found on ebay: pump

has 100 PSI. It is 12v DC powered, and has 5A amp draw.

I wanted your opinion on this problem, If I have the right formula, are the calculations ok, is this pump more than enough to fill the tank in 10 hours, how big must me the solar panel system, how strong must be the car battery to hold that much energy, if you have some cheaper or more convenient solutions, what are the potential risks and problems I did not think of, and any other sugestions you may have.

http://img703.imageshack.us/img703/9431/imgwdw.jpg [Broken]

IMAGE VIEW LINK

Thank you,

Mario

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