How much water pressure.To use 3 sprinklers on a 30'x60' yard.?

Question

I am trying to water all my yard at one time. But I barelly have water pressure for one sprinkler. I need to find out how much pressure is getting to the one sprinkler so I can tripple it. Anybody know how do this or calculate how much pressure I need for three sprinklers.

Answer 1

Instead calculate the flow of your water supply when fully open by timing how long it takes to fill a known size container. ie. stick an open hose into a 3 gallon pail and count the seconds.

From that measure calculate how many gallons your hose can flow per minute.

Sprinklers are sold in terms of gallons per minute or you can calculate how many gallons flow through an existing sprinkler as you did for the rate of full flow.

If you need to use three sprinklers, each will have to have a maximum flow rate of one-third of the total flow rate.

Upping the pressure at the source will increase the flow rate and that can also be determined with a watch and a known size container.