PDA

View Full Version : What would you use to water an area 40'


ArTurf
06-10-2012, 11:22 PM
Hypothetical situation. Say you have an area 40' x 160' with 50 psi. What would you use and spacing? 40' is too far for residential rotors with this psi, too far for 2 lines of MP2000's.

Kiril
06-10-2012, 11:28 PM
I wouldn't use anything until I got more information.

1idejim
06-11-2012, 12:31 AM
I wouldn't use anything until I got more information.

one of the best no BS answers in a while.
Posted via Mobile Device

ArTurf
06-11-2012, 07:47 AM
Let's just say you are working with about 15 available gpm & 50 psi. You're not going to get a rotor to reliable throw 40' so would you space MP3000's 20 feet apart and throttle them down.

Kiril
06-11-2012, 08:18 AM
Still got nothing man. 15 GPM @ 50 PSI where .... POC, valves, nozzle ... Is that a static PSI or dynamic? Why do you think you can't get 40 feet out of a resi-comm rotor?

FIMCO-MEISTER
06-11-2012, 08:19 AM
I'd use three lines of MP2000s in triangular spacing if that is your choice of head. Maxi paws rule in these types of situations though.

ArTurf
06-11-2012, 09:41 AM
I'd use three lines of MP2000s in triangular spacing if that is your choice of head. Maxi paws rule in these types of situations though.

I find it difficult to actually get 20' out of a MP2000. Can you actually get 20' without ALOT of extra pressure?

ArTurf
06-11-2012, 09:48 AM
Still got nothing man. 15 GPM @ 50 PSI where .... POC, valves, nozzle ... Is that a static PSI or dynamic? Why do you think you can't get 40 feet out of a resi-comm rotor?

This is all hypothetical. Let's say 50 static after the backflow. Assume you have approx 15gpm per zone to work with. I realize you can get 40' out of a head but the larger size nozzle required would mean putting very few heads on a station which would mean I would have an excessive # of stations.

What head/nozzle would you use to throw 40' or would you divide it into 2 and throw 20'?

Mike Leary
06-11-2012, 11:29 AM
I find it difficult to actually get 20' out of a MP2000. Can you actually get 20' without ALOT of extra pressure?

20' would be a stretch with minium psi.

Kiril
06-11-2012, 12:18 PM
I find it difficult to actually get 20' out of a MP2000. Can you actually get 20' without ALOT of extra pressure?

yes

This is all hypothetical. Let's say 50 static after the backflow. Assume you have approx 15gpm per zone to work with. I realize you can get 40' out of a head but the larger size nozzle required would mean putting very few heads on a station which would mean I would have an excessive # of stations.

What head/nozzle would you use to throw 40' or would you divide it into 2 and throw 20'?

Hypothetically speaking, without an estimated nozzle pressure you have nothing here. Hypothetically if I could assume 40-45 psi at the nozzle I would be using RB5000 series with a #4 nozzle on the 180's.

txirrigation
06-11-2012, 04:23 PM
yes



Hypothetically speaking, without an estimated nozzle pressure you have nothing here. Hypothetically if I could assume 40-45 psi at the nozzle I would be using RB5000 series with a #4 nozzle on the 180's.

What he said.

FIMCO-MEISTER
06-11-2012, 07:17 PM
What he said.

ditto......

ArTurf
06-11-2012, 10:24 PM
yes



Hypothetically speaking, without an estimated nozzle pressure you have nothing here. Hypothetically if I could assume 40-45 psi at the nozzle I would be using RB5000 series with a #4 nozzle on the 180's.

Ok, a #4 would throw 40' with good pressure but what would you do on the 90 degree corner? If you use a #2 it's not going to reach anywhere near 40. Not trying to argue with anyone but just trying to figure out the best way to do those in between distances if you know what I mean.

irritation
06-11-2012, 10:37 PM
It should, if wind is a problem use a LA.

ArTurf
06-11-2012, 10:48 PM
It should, if wind is a problem use a LA.

The rainbird specs show 37' @ 45psi with the #2, and we all know those are best case scenarios. No way I would space a #2 40' and not expect dry spots.

irritation
06-11-2012, 11:08 PM
Rainbird doesn't use # like Hunter for their nozzles. Maybe you should be like mike and use 6" I-20's.

Kiril
06-12-2012, 07:52 AM
Ok, a #4 would throw 40' with good pressure but what would you do on the 90 degree corner? If you use a #2 it's not going to reach anywhere near 40. Not trying to argue with anyone but just trying to figure out the best way to do those in between distances if you know what I mean.

Use #4 (AKA Nozzle 4.0) on the corners, just don't put them on the same valve as your 180's.

ArTurf
06-12-2012, 10:40 AM
Use #4 (AKA Nozzle 4.0) on the corners, just don't put them on the same valve as your 180's.

Good thought, that's the kind of ideas I was looking for.

Kiril
06-12-2012, 11:19 AM
Good thought, that's the kind of ideas I was looking for.

You do understand what I mean, right? All 90 degree arcs will have to be on the same valve(s) so you can adjust the runtime accordingly to compensate for the higher PR. No mixing arcs on the same valves allowed in this scenario.

ArTurf
06-12-2012, 12:27 PM
You do understand what I mean, right? All 90 degree arcs will have to be on the same valve(s) so you can adjust the runtime accordingly to compensate for the higher PR. No mixing arcs on the same valves allowed in this scenario.

I get it. Good idea, though it might present installation isssues in some cases.
But something I will definitely keep in mind.

irrig8r
06-12-2012, 10:22 PM
Hypothetical situation. Say you have an area 40' x 160' with 50 psi. What would you use and spacing? 40' is too far for residential rotors with this psi, too far for 2 lines of MP2000's.

I'd go with a Varithrow. :laugh:

Tom Tom
06-12-2012, 11:35 PM
rb5000 with red nozzles

ArTurf
06-13-2012, 07:28 AM
rb5000 with red nozzles

If this is a joke I don't get it?? Explain.

Wet_Boots
06-13-2012, 07:59 AM
use a Hosey Cow

C_2awv_V3WU

Tom Tom
06-13-2012, 10:14 PM
If this is a joke I don't get it?? Explain.

what do you need to know

ArTurf
06-14-2012, 10:12 AM
what do you need to know

I've used 5000's since they 1st came out and I've never seen red nozzles for them. Did I miss something?

DanaMac
06-14-2012, 10:57 AM
I've used 5000's since they 1st came out and I've never seen red nozzles for them. Did I miss something?

Special order MPR nozzles, if I'm not mistaken.

Mike Leary
06-14-2012, 12:25 PM
I've used 5000's since they 1st came out and I've never seen red nozzles for them. Did I miss something?

Yes, you did. The red nozzles are MPRs, they'll chuck from 23' to 25' dependng on the psi.:)