Hi Goodlife
The pump is only a small unit and was designed to pump water to a height of about half a meter to fill a bowl which then cascades down into the reservoir below. The pump just circulated this water. My intention is to have my butt close to the rear of the greenhouse and connect a hose to the tap which would be adapted down in size to suit the pump inlet. The outlet pipe would then run round my greenhouse to the places I want to water and weep points will be cut or drilled along its length in the appropriate places. The only issue I think is going to be restricting the flow so that even with the pump running all day it does not over water. You never know it might just work.
Failing all that I will just have to rig up some sort of gravity/self leveling system and forget using the solar panel.
Michael