I’m in the process of switching my turf circuits to Hunter MP Rotator heads. (See http://www.hunterindustries.com/irrigation-product/nozzles/mp-rotator ). I’ve selected “rotary nozzle” as the nozzle type. Is this the best choice?

I picked up some of the MP2000 rotator heads also and looked at the hunter site for precip rates http://www.hunterindustries.com/node/501 My psi is around 28 give or take, not that it matters much with these. I am watering grass not trying to fly a rocket. The precip rates are about half of the s…

Without doing a catch cup test it’s hard to tell exactly what to set set it at, unless you’ve used their documentation factoring in psi, etc. You could create a custom nozzle with. 4in precipitation and see what run times we are generating for you. . 4in does seem like the lower end, but maybe the…

I will do a meter test to see if the numbers align. Visually though the don’t appear to put out a heck of a lot of moisture. Question for you when calculating the square footage / precip rate. One of the heads (180 degree) overlaps with another zone. Should you count that overlapping square footage…

With the situation like you describe, a catch cup test is a good way to measure “distribution uniformity”, which deals with what you are seeing in overlap. This tool will take multiple inputs for measuring (cups) and come up with a distribution uniformity number. This is used for setting the attribu…

Please, run a catch cup test! The results surprised me. I installed and use Hunter MP Rotator (1000 series) heads. Hunter lists them (I think) as .39"/hr. I JUST ran a catch cup test (8 cups for a ~500 sq ft area) and came up with .75"/hr. There are two things that can account for that (in my case…

[image] grit: The pressure in my system is WAY too high… around 80-90 PSI. Yikes! You might look into replacing your spray bodies with the Hunter PRO-SPRAY PRS40.

I’m one step ahead of you. :slight_smile: I ordered Hunter Accu-Sync pressure regulators for the valves. :smile: They should be in this week. Then I’ll have to run my catch-cup tests again.

[image] grit: I’m one step ahead of you. I ordered Hunter Accu-Sync pressure regulators for the valves. They should be in this week. Then I’ll have to run my catch-cup tests again. Very nice :smile:

[image] grit: I ordered Hunter Accu-Sync pressure regulators for the valves…I’ll have to run my catch-cup tests again. @grit , would love to hear the outcome of the second catch cup test if you don’t mind sharing them with us.

I just ran a meter test on this zone with the new heads. 5 heads delivered 3.1 GPM 4 heads 20 feet apart with a 360 degree head in the middle. I of the 4 heads covers 180 degrees overlap with another zone. Rough math @ 400 sqft is 0.75 in/hr Psi is 28 in zone. So no idea what this means for the …

Hunter MP Rotator Heads

Troubleshooting Sprinklers & Irrigation

ronjonp August 18, 2015, 3:40pm 9

Yikes! You might look into replacing your spray bodies with the Hunter PRO-SPRAY PRS40.