How many mp rotators per zone

My watering schedule would be too long. So as asked above what is a recommended average maximum number of heads per circuit given the known supply line pressure and GPM?

What is the definition of "very good pressure"? They provide 40 PSI check valves reaffirming this is the optimal operating pressure. So is 40 PSI "very good pressure"? Monday, August 1st , pm. Personally I do not like mp rotators. We have installed thousands of them, My boss likes them for some reason. And when you first put them in,they work pretty good,they do the job,they look pretty good. I just went to a job today actually,5 zones of mps. They had a booster pump for town supply and everything,although they dont have the greatest pressure regardless.

I think it was about 7 mp's per zone. Out of 35 or so mp's,3 of them wouldnt open,they get stuck closed and shoot a bunch of streams straight up in the air,3 didnt turn at all,and 3 of them pissed out the left side and didnt spin. I cant speak on the competency of the installers,it was zoned well though. Take a look at hunter.

They have videos of mp rotators working,and they are working awsome. If they worked like that all the time they would be great. If you have a yard that would be 12 zones with 8 heads a zone,well having 24 zones with half the heads is stupid like you said. But if you have a yard that would be maybe 7 zones,with 8 heads a zone,and you could do 9 zones with a couple less heads per zone,thats the way to go.

If you dont have awsome pressure,you will be disapointed if you do 8 heads a zone. Im not kidding,they stop turning,they stop rotating if you turn them down,somtimes they do somtimes they dont. They have heavy streams on either side after a couple years.

If i were you i would use some rainbird 's. We were just given a few boxes for free to try them out. They are little rotors and I personally love them,They are friggen great.

The stream is nice and low so they are good for smaller areas. You can also put a bigger nozzle in it and they shoot far. Also check out a few rain bird rotary nozzles,those work great,they always spin,they throw more water than mps,but it just looks like they are doing a better job.

Its all a matter of opinion really,some people might think im friggen nuts for hating on the mp's. If you had a pump with 60 psi they'd work great for you. I just wouldnt push the limit of heads on a zone. In , the small Hunter team introduced the PGP gear-driven rotor to the world of irrigation. This slower application rate allows water to gently soak into the soil and achieves an even distribution throughout the area being irrigated. MP stands for Matched Precipitation.

An MP rotator is water saving irrigation equipment that converts spray heads easily. MP rotators reduce water use while making the irrigation systems more efficient. With your 10 gpm flow rate at your spigot, you could run two sprinklers at 5 gpm each. The best set-up is to run two hoses from the spigot—each to one sprinkler.

The amount of watering time reduced compared to the original run time scheduled can be seen on the Seasonal Adjustment bar below each Program or Zone Card. A lawn should be watered for about one inch per week, so how much water does my lawn need? The answer is that it usually takes up to 30 minutes to get a half inch of water.

Watering 3 times per week equals to an inch of water on a lawn. Misperception: Low precipitation rate just means longer run times. But, one small negative of just two zones is that you are forced to water all your lawn. For example, the north shaded areas will need less water than the south.

Adding more zone will give you flexibility. My Lawn Journal. Look at the Jess Stryker irrigation tutorials and run the numbers. The math is easy. You just need to sum each nozzle's GPM to get the total for each zone.

Then look at your pipe size. Jess has "rule of thumb" tips for safe velocities. In theory you've got the flow to run over 10 to 15 MP together, but water hammer damage can cost you in the long run.

One advantage of more zones is flexibility. You can water dry areas longer and low, shaded wet areas shorter. Look at your elevations to see if it's worth factoring that in. Finally, you can adjust your schedule across more days. Just spitballin' ideas. Please keep us posted. Sounds really cool! Last edited by corneliani on Sat Sep 28, pm, edited 1 time in total.