Feedback on Proposal?

Irrigation systems, sprinklers & other watering topics
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1028mountain
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Feedback on Proposal?

Post by 1028mountain » Sun Oct 06, 2019 10:53 am

I got couple proposal for irrigation...$5500 for 6k sqft of yard plus all my flower beds, can anyone tell if that is a good deal? They will do just the lawn for $3500 or the lawn plus my largest flower bed for $4100. I got another one for the same job for $6500 but I had to find and pay a plumber to install the back flow line.

Code: Select all

9                       1 Inch Control Valves
1000 FT          	1 Inch PVC Irrigation Pipe
250 FT			18/13 Conductor Irrigation Control Wire
105 FT			Irrigation Flex Pipe
3			Irrigation Valve Boxes
1			12 Zone Hunter PRO-C Automatic Controller
14			Hunter PGP Ultra Rotor Heads [Turf Areas]
0			MP Rotator Turf Heads
20			Hunter Pro Spray Heads     
1			Back Flow Preventer

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hsvtoolfool
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Re: Feedback on Proposal?

Post by hsvtoolfool » Tue Oct 08, 2019 11:27 am

Ther rule of thumb in my area is about $500 to $600 per zone....

9 valves x $600 = $5400

I don't know what your local labor prices are like, but for my region that estimate is about average.

However...that assumes they do the job right. Unfotunately, there's no "city inspectors" for irrigation installers, at least not in my region. The result is too many bozos calling themselves irrigation installers. Learn all you can about good irrigation so you can separate the good guys from the bad. I'd pay more for a genuine "pro".

For even coverage, the rotor heads must shoot onto all the neighboring heads. This is called "head to head" coverage. Too often, fly-by-night irrigation installers use too few heads. The heads are spaced so that the streams meet somewhere in the middle and you end up with dry spots or having to compensate by over-watering. They either don't know what they're doing, or they're just padding their profits.

So ask them about the head spacing and how many zones they plan to use for those lawn rotors. Get it in writing that all lawn heads will be spaced to hit the neighboring heads. Demand a guaranteed irrigation audit after the install with even coverage on the lawn. Walk away if they never head of an irrigation audit or try to tell you head-to-head coverage isn't needed.

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1028mountain
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Re: Feedback on Proposal?

Post by 1028mountain » Wed Oct 09, 2019 8:40 am

@hsvtoolfool

Thanks man, all good points. The company has great reviews and is local so from what I can tell they appear to know what they are doing. Their quote was also $1000 less than a competitors quote.

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Re: Feedback on Proposal?

Post by dpainter68 » Wed Oct 09, 2019 9:11 am

1028mountain wrote:
Sun Oct 06, 2019 10:53 am
I got couple proposal for irrigation...$5500 for 6k sqft of yard plus all my flower beds, can anyone tell if that is a good deal? They will do just the lawn for $3500 or the lawn plus my largest flower bed for $4100. I got another one for the same job for $6500 but I had to find and pay a plumber to install the back flow line.

Code: Select all

9                       1 Inch Control Valves
1000 FT          	1 Inch PVC Irrigation Pipe
250 FT			18/13 Conductor Irrigation Control Wire
105 FT			Irrigation Flex Pipe
3			Irrigation Valve Boxes
1			12 Zone Hunter PRO-C Automatic Controller
14			Hunter PGP Ultra Rotor Heads [Turf Areas]
0			MP Rotator Turf Heads
20			Hunter Pro Spray Heads     
1			Back Flow Preventer
Any idea what your water pressure and available flow is? 9 zones for 6k sqft seems like a lot to me. Have a lot of flower beds by any chance?

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1028mountain
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Re: Feedback on Proposal?

Post by 1028mountain » Wed Oct 09, 2019 10:53 am

Lots of pressure at the bibs like 40-60PSi depending on which one I test from. Not sure how to test available flow? I have a fair amount of flower beds...green is grass and blue are flower beds. The cross hatched areas are gravel driveways.

They came back and said they would do everything for $5250 (9 zones). I asked them to confirm head to head as well as an audit but waiting to hear back.

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hsvtoolfool
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Re: Feedback on Proposal?

Post by hsvtoolfool » Wed Oct 09, 2019 5:12 pm

You won't need to worry about these details since your installer hopefully knows their stuff. That said...

Ignore the hose bibs...too many restrictions and twisty turns. Flow and pressure are measured from the main supply pipe between the meter and your house. That's where your irrigation system gets water. Many city folks install a dedicated water meter just for the irrigation to avoid sewage treatment charges. I have a septic tank, so I didn't need a separate meter.

If you're interested, read the Jess Stryker irrigation tutorials for details...

https://www.irrigationtutorials.com/

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1028mountain
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Re: Feedback on Proposal?

Post by 1028mountain » Fri Oct 11, 2019 6:27 pm

I’m on a well of that matters?

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hsvtoolfool
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Re: Feedback on Proposal?

Post by hsvtoolfool » Sat Oct 12, 2019 5:14 pm

For the MP Rotators, be sure to install a 100 mesh filter in the main line. They are more sensitive to sand and dirt than big rotor nozzles. Otherwise, I have no experience with well pumps flow and pressures. Anyone else?

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Re: Feedback on Proposal?

Post by Bermuda_Triangle » Sun Oct 13, 2019 2:16 am

I found this site to be very informative: https://www.irrigationtutorials.com/

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