Help! Lack of water pressure from water tank to greenhouse's sprinklers.

[pogiirojen]

"LACK OF PRESSURE?"

We're really having a huge problem because we're conducting our experimental thesis in my BSIT degree, and I really don't know a single thing to solve this problem. Please help me. Please based on the image link above or attachment below. Thank you!

We have a water tank (aprrox. 5-6 meters high) and a Greenhouse (approx. 3-3.5 meters high) and there is a tube connecting 6 sprinklers on the top of the greenhouse for our watering system. The distance between the water tank and the Greenhouse is approximately 10-15 meters long. So our connecting tube from water tank to greenhouse is approximately 10-15 meters long as said in the distance. The problem is. The water is flowing and it reached the end-point of the tube of the sprinklers. Only the 6th sprinkler will turn on because I think the end-point will take more pressure than the others. The other five is watering but I think even an ant can't get wet. Please help. What do we need to do? Hardware sellers and Agriculture experts in our area says we need a water pump machine. probably "Jetmatic"
Please. if ever we need to use a hard/machine. Make it under 100$. Thank you!

 

[Valveman]

A 6 meter water tower feeding a 3 meter tall green house will only deliver about 4 PSI to the sprinklers. Yeah that won't even get an ant wet. You will need a pump, but I don't know about being less than 100 bucks. Check the specs on the sprinklers. Find out how many GPM's they use and at what pressure. If they say they will do 2 GPM at 30 PSI, you would need a pump that could do 12 GPM at 30 PSI to run 6 sprinklers at a time.