Hello everyone,
I want to install an automatic garden irrigation system. For this, I plan to use a pump that provides a maximum pressure of 4.4 bar. At 3.5 bar, the pump delivers a water flow rate of 3.1 m³/h (3.4 yd³/h). Since my largest zone only requires 1.6 m³/h (1.8 yd³/h), this is more than enough.
I will be using Hunter or Rainbird nozzles. The question I have is which pop-up sprinklers I need. There are models with pressure regulation that reduce the pressure to, for example, 3.1 or 2.8 bar. However, they cost about 10 euros each. With 30 sprinklers, that adds up.
I have researched this topic a lot but keep reading conflicting opinions. Some say the entire irrigation system only works properly if I use pressure-regulated pop-up bodies everywhere. Others say to save the money and use 32 mm (1 1/4 inch) polyethylene pipes with standard pop-up bodies without pressure regulation.
Does anyone here have experience with this and can tell me if the system works just as well with pop-up bodies without pressure regulation?
I want to install an automatic garden irrigation system. For this, I plan to use a pump that provides a maximum pressure of 4.4 bar. At 3.5 bar, the pump delivers a water flow rate of 3.1 m³/h (3.4 yd³/h). Since my largest zone only requires 1.6 m³/h (1.8 yd³/h), this is more than enough.
I will be using Hunter or Rainbird nozzles. The question I have is which pop-up sprinklers I need. There are models with pressure regulation that reduce the pressure to, for example, 3.1 or 2.8 bar. However, they cost about 10 euros each. With 30 sprinklers, that adds up.
I have researched this topic a lot but keep reading conflicting opinions. Some say the entire irrigation system only works properly if I use pressure-regulated pop-up bodies everywhere. Others say to save the money and use 32 mm (1 1/4 inch) polyethylene pipes with standard pop-up bodies without pressure regulation.
Does anyone here have experience with this and can tell me if the system works just as well with pop-up bodies without pressure regulation?
W
wiltshire24 Aug 2025 16:38If you want to install the sprinklers in a row and precisely control the throw distance, use the version with a pressure regulator.
Of course, you can also vary the spacing between the sprinklers to account for the decreasing throw distance caused by their position in the row. For me, calculating this would be too complicated, and I would skip the test setup for an additional cost of around 300€ (about $320).
Of course, you can also vary the spacing between the sprinklers to account for the decreasing throw distance caused by their position in the row. For me, calculating this would be too complicated, and I would skip the test setup for an additional cost of around 300€ (about $320).
W
wiltshire24 Aug 2025 17:29BoPaDi24 schrieb:
Then I will use the pressure regulators – thank you.
Do you have a preference between Hunter and Rainbird? No, I can’t offer a well-founded comparative expertise on that.
I do know that the Hunter family takes social responsibility seriously in Southern California and actively participates in community welfare and environmental protection. I like that.
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