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Old 10-28-2014, 11:57 PM
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joallen001 joallen001 is offline
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MP's or RB5000

Normally I install RB5000. We are slammed with work right now so my irrigation supply house offered to design system for me. I told him normally I would use rb5000. The job is about 1.3 acres with a 1" meter. So today I got back the design and he used all MP's. He used 153 mps on 1806's and drip in the beds. Running around 26gpm per zone. I am just curious to thoughts on this and if anyone has used mps on a job that size. I never imagined mps on a lawn that large. I would of used rotors but then again I guess mps would work.
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Old 10-29-2014, 08:52 AM
bobw bobw is offline
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I like MPs fine and put thousands of them in the ground. Lots of good reasons to use them, a few good reasons not to. I'm also a big fan of RB5000s with MPR nozzles...

My biggest slam against MPs is that their smaller droplet size is prone to wind drift. If you're installing in an area that can be windy, they are not the best choice. A rotor will be more effective.

With the low precip rate on MPs, do you have enough time in your watering window to effectively water that property?
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Old 10-29-2014, 09:17 AM
ArTurf ArTurf is offline
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Are you sure of the 26 gpm? sounds VERY optimistic. Over estimating gpm is one of the most common mistakes I see.
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Old 10-29-2014, 10:24 AM
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Wet_Boots Wet_Boots is online now
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One flaw of the MP Rotator is that off-season lawn growth can bind up around a below-grade head, and interfere with its turning when the system is reopened.
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Old 10-29-2014, 10:44 AM
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joallen001 joallen001 is offline
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I don't think wind would be a big issue. I do need to double check the appropriate watering times. I think there was a total of 12-14 zones. With a 1" meter usually we are safe around 32gpm but usually plan for less.
The irrigation rep basically goes for mp. Says you space them just like you would the rb5000 and they are more efficient. He also likes that you can use a 6" body and mp nozzle for about same price as a rotor. 6" is a plus for fescue.

Last edited by joallen001; 10-29-2014 at 10:49 AM.
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Old 10-29-2014, 04:16 PM
woodlawnservice woodlawnservice is offline
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Quote:
Originally Posted by joallen001 View Post
I don't think wind would be a big issue. I do need to double check the appropriate watering times. I think there was a total of 12-14 zones. With a 1" meter usually we are safe around 32gpm but usually plan for less.
The irrigation rep basically goes for mp. Says you space them just like you would the rb5000 and they are more efficient. He also likes that you can use a 6" body and mp nozzle for about same price as a rotor. 6" is a plus for fescue.

Im new to the rotators as well. Just built myself a new house and actually using all mps on it besides the beds that has sprays. Ive got 1 acre im irrigating on them with half of it installed right now. 1" meter then upsized to 1.25" sch 40. 200' down the main to my house at the poc im getting 30gpm. 85psi static. I designed my system for 21gpm just to be on the safe side and stay well under the velocity limits but I love the mps so far. Im in a fairly windy area and they seem to do just fine.I did Alot of research before buying materials to do all mps since I was new to them. Most of the info ive read on here is correct but I can say I did true head to head coverage ( actually spaced them 2-3' under what Hunter claims they reach) because I herd people complaining rhey didnr actually water effectively that far... well so far they are throwing every bit of what the spec sheets say. If not 1-2' over......I used 6" prs bodies on most heads due to the higher pressures as well. Very satisfied so far.
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Old 10-29-2014, 07:32 PM
txirrigation txirrigation is offline
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We do it all the time, they work great. The only thing is you need to space the mp 3000's about 27' not 30'.
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Old 10-29-2014, 07:54 PM
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joallen001 joallen001 is offline
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It just seems like it would take way less rotors to irrigate a large lawn. Something like 153 mp's to somewhere around 109 RB5000's
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Old 10-30-2014, 08:33 PM
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Sprinkus Sprinkus is offline
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Quote:
Originally Posted by joallen001 View Post
Normally I install RB5000. We are slammed with work right now so my irrigation supply house offered to design system for me. I told him normally I would use rb5000.
Quote:
Originally Posted by joallen001 View Post
It just seems like it would take way less rotors to irrigate a large lawn. Something like 153 mp's to somewhere around 109 RB5000's
It seems to me like you're answering your own question.
Install it with 5000's.
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Old 10-30-2014, 08:43 PM
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Mike Leary Mike Leary is online now
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Quote:
Originally Posted by Sprinkus View Post
It seems to me like you're answering your own question.
Install it with 5000's.
What he said. As long as the curves are not too radical, the 5000 series (maybe with a fill-in zone of MPs in the curves) will work great with MPR nozzles if you have different arcs on the same zone. I'd use the 5550 6" w/stainless risers and SAM heads if the topography is uneven.
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