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Wet_Boots

Supreme Member

Posts: 4,027

Location: Metro NYC

11

Saturday, January 20th 2007, 8:19am

If the existing system has 6 rotors on one zone, why not? Corner heads might keep those 2-gpm nozzles, and the half-circle heads would get 4-gpm nozzles. That gives you 16 gpm for 6 heads.

hbcsc153

Senior Member

12

Saturday, January 20th 2007, 9:36am

Hi Wet_Boots!

The old system had 3 zones for the 6 pop-up sprinklers. If I can manage with one zone, that will leave me the other 2 with the anti-siphon valves, etc. to water the areas that are not presently covered.

I may have read it wrong. I assumed that with 50 PSI with the 5 nozzel it is 2 gpm, so my total for the 6 PGP's should be 12 GPM. As you mentioned 4 will be 90 degrees, and 2 will be 180 degrees.

Thoughts?

Emil

Wet_Boots

Supreme Member

Posts: 4,027

Location: Metro NYC

13

Sunday, January 21st 2007, 5:52am

Assuming equal spray distances, the half circle heads should spray twice the water of the quarter circle heads, since they cover twice the area.

There will be a limit what one antisyphon valve will allow to flow through it, so don't look at all three valves open at once, and assume that water can pass through a single valve.

hbcsc153

Senior Member

14

Friday, January 26th 2007, 8:24pm

Is using "funny pipe" okay with the PGP's?

SprinklerGuy

Supreme Member

15

Saturday, January 27th 2007, 2:45am

Absolutely.....

I use it....
Sprinkler Solutions, Inc.
Arizona and Colorado
www.sprinklersolutions.net

hbcsc153

Senior Member

16

Saturday, January 27th 2007, 6:07am

SprinklerGuy:

Thanks!

The irrigation place gave me a Rainbird 1/2" 1/2" 12" swing assembly to use with the PGP's. Thoughts? I have 3/4" PVC running all over.

Regards,

Emil

Wet_Boots

Supreme Member

Posts: 4,027

Location: Metro NYC

17

Saturday, January 27th 2007, 9:26am

3/4 x 1/2 fittings and bushings

hbcsc153

Senior Member

18

Saturday, January 27th 2007, 3:02pm

Hi Wet_Boots!

They gave me the adapter to convert the PGP from 3/4 to 1/2, and then use the funny pipe. My concern is whether it is restrictive to use the funny pipe, or it is not an issue.

Regards,

Emil

Wet_Boots

Supreme Member

Posts: 4,027

Location: Metro NYC

19

Saturday, January 27th 2007, 5:06pm

Not an issue - just connect the dots, and don't think this thing to death.

hbcsc153

Senior Member

20

Sunday, January 28th 2007, 4:14am

Wet_Boots:

Will do. Thanks.

Emil

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