Spacing residential rotors more than 40' feet

[ArTurf]

Do any of you space rotors more than 40' in ar residential situation. If so what size nozzle do you typically use? I generally use Rainbird 5000s so I would have to at least use #5 nozzle which is listed at 45'. The spacing I would need to use would be 42'. Do you think the #5 would reach sufficiently for head-to-head coverage?

[Wet_Boots]

It doesn't make sense in a head-to-head residential system, even if you got pressure to burn. Long-distance rotors use too much water.

Mind you, that applies to systems with basement water meters, and less than 15 gpm in a zone.

[jvanvliet]

Not everyone has basements and less than 15 gpm in a zone.

[jvanvliet]

Originally Posted by ArTurf

Do you think the #5 would reach sufficiently for head-to-head coverage?

Everything depends on having enough pressure & flow.

[ArTurf]

I have approx 14gpm @ 50psi. The area watered is 42 x 82. I was thinking of 3 stations each with 2 heads with a 5 or 6 gpm nozzle. But was worried that trying to throw long distances might not give good coverage. The other choice would be MP's spaced 21'.

[Irrigation Contractor]

You can't do it with 14 gpm without adding more or about the same amount of valves using 30-35' spacing. The 5004 is not meant for your application and large gpm rotors eat up water drastically once you get to that range.

Anything above 40' we use the RB 5505 and would only implement this head on a design that has 50 plus gpm.

[ArTurf]

Originally Posted by Irrigation Contractor

You can't do it with 14 gpm without adding more or about the same amount of valves using 30-35' spacing. The 5004 is not meant for your application and large gpm rotors eat up water drastically once you get to that range.

Anything above 40' we use the RB 5505 and would only implement this head on a design that has 50 plus gpm.

Been kind of thinking about using the 5500 on some high end jobs. How do you like them?

[Irrigation Contractor]

Originally Posted by ArTurf

Been kind of thinking about using the 5500 on some high end jobs. How do you like them?

We really like them allot and maybe I am misunderstanding your flow?

To cover 42' your would need to use a black #4 nozzle and have 40 psi at the head. They use about a gallon more than RB says they do, so you would get 3 heads and at the most 4 on the zone. For me, that is just cutting it too close since we design to use 85% max of what the water supply is putting out.

It is possible if you go by the numbers, I just hate worry about whether it is going work until we turn the water on

I am really interested to hear the outcome and you will really like the 5500 when you get a chance to use it. RB's new price on it makes it even better, plus the 3/4 swing joints save a little coin too.

[ArTurf]

Originally Posted by Irrigation Contractor

We really like them allot and maybe I am misunderstanding your flow?

To cover 42' your would need to use a black #4 nozzle and have 40 psi at the head. They use about a gallon more than RB says they do, so you would get 3 heads and at the most 4 on the zone. For me, that is just cutting it too close since we design to use 85% max of what the water supply is putting out.

It is possible if you go by the numbers, I just hate worry about whether it is going work until we turn the water on

I am really interested to hear the outcome and you will really like the 5500 when you get a chance to use it. RB's new price on it makes it even better, plus the 3/4 swing joints save a little coin too.

If I was to space these heads at 42' I would at least use the #5 nozzle and only put 2 heads per zone. Not sure if I would use the 5500 on this job. It probably would work but may just go with shorter spacing in the name of efficiency.

[muddywater]

Originally Posted by ArTurf

If I was to space these heads at 42' I would at least use the #5 nozzle and only put 2 heads per zone. Not sure if I would use the 5500 on this job. It probably would work but may just go with shorter spacing in the name of efficiency.

I have had 5004s do 50' on the rim of a retention pond. I did another job the other the same way you are talking. #4 nozzles for 42' at 45psi at the head. I had a 40x40 lawn and just used 4 rotors. I got the idea from one of kiril's post.

http://www.rainbird.com/documents/turf/chart_5000.pdf