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crice8

New Member

1

Thursday, July 7th 2016, 10:11am

Sprinkler System on the House we Purchased in 2014

Hello all,

I have been a lurker of this forum for several weeks now, as google always seems to direct me here when I am researching info for our sprinkler system. I need some guidance so please bare with me on this long post.

We bought this house in Winter 2014. It was built in 2007, and at that time they installed a full sprinkler system. The system consists of 4 zones. The lawn itself is probably only 6000 sqft or so. One of the zones has not worked since we bought the house(until I fixed it last weekend, more on that to come) The system has been good for our yard here in east Texas, but I have been keeping my St.Augustine taller this year with great results, but the sprinklers needed to be raised up due to this. This made me start doing research and wanting to upgrade to 6" pop up spray heads and rotors as I need to. This is what started this all. I had several dry spots and I determined these were actually from the water being block by the grass and not fully spraying. I raised the heads some temporarily for the time being as they are connected to flex joints.

The Valves for this system were no where to be found. I had tried multiple times to find them by digging holes. I was finally successful this past weekend! It was amazing to finally find them! Unfortunately, when they were installed they were directly buried in the ground with no valve box. I installed a valve box over them this past weekend. I thought I had cut a wire when I was digging around them, I got grease caps, fixed the connection, and would you know it the Station that has never worked since we moved into the house now works!

The system breakdown is like this:
Controller-Weathermatic using 4 zones on the controller
Zone 1- Front yard, consisting of 8-9 Rotor heads (most of these are Weathermatic Turbo 3 4" rotors)
Zone 2-Back yard, consisting of 7 Rotor heads (most of these are Weathermatic Turbo 3 4" rotors)
Zone 3- Flower bed, side of house, perimeter of house, Consisting of 11 Weathermatic pop up spray heads and 4 fixed flowerbed sprays.
Zone 4- Sidewalk track of grass between road, consisting of 26 weathermatic pop up heads

As I have done research it really seems like there are way too many heads on some of my zones. The company that installed this system is a well known respected company, so I would assume they did it correctly, but then again they simply buried the valves without a valve box.

My thoughts are gradually swapping out the weathermatic pop up spray heads for Rainbird 1800 6" spray heads and swapping the turbo 3 rotors for Rainbird 5000 6" rotors. The amount of heads on each zone has me concerned though. I will find out what my current water output is on my external faucet.

In the meantime can anyone offer recommendations on my system(= I know it is a lot of information. I am sorry. I just really take pride in our yard and such and want to do this right. I would really like to somehow add automation to this system for trees we planted since we moved in, because right now I have a faucet drip line setup going to them since I had no idea where the valves were.

Wet_Boots

Supreme Member

Posts: 5,287

Location: Metro NYC

2

Thursday, July 7th 2016, 10:32am

Don't worry too much about the head counts, so long as the supply pressure is good while the zones are running.

As for heads, if they are all on flex connections, you might be able to raise them with some digging. Odds are good that the turf has built up and the heads are now below grade. Set them correctly, a little bit above grade, and you might find you have all the popup height needed.

crice8

New Member

3

Thursday, July 7th 2016, 10:49am

Don't worry too much about the head counts, so long as the supply pressure is good while the zones are running.

As for heads, if they are all on flex connections, you might be able to raise them with some digging. Odds are good that the turf has built up and the heads are now below grade. Set them correctly, a little bit above grade, and you might find you have all the popup height needed.
Thank you for your response. That is what I did so far. Is I raised them to where they are somewhat above grade but not above where I cut the grass height wise. But with them raised above grade like that, the grass will still semi block the spray after a couple of days growth. I installed a Rainbird 1806 in a dry area and it clears the grass perfectly. Would switching out the weathermatic heads to Rainbird heads cause issues since there are so many on the stations? I need to find out which specific weathermatic spray heads they are to compare gpm rates.

crice8

New Member

4

Thursday, July 7th 2016, 1:46pm

I called the water department and they said the water pressure for my address is 93. I assume I have a pressure regulator between the water meter and my house. There is a box right after the water meter box that simply has a pipe with some sort of fitting in the middle. I have always wondered what it is. I assume that is the pressure regulator. I'm going to take a closer look at it when I get home from work.

crice8

New Member

5

Thursday, July 7th 2016, 1:52pm

I did find in the home inspection we had done when we purchased the house that the static water pressure was measured at 80psi. I assume static water pressure is measured at an external faucet?

Wet_Boots

Supreme Member

Posts: 5,287

Location: Metro NYC

6

Thursday, July 7th 2016, 5:41pm

If you're going to maintain a tall lawn, then go ahead and switch heads. My own experience with bluegrass lawns doesn't show any great benefit for tall heads in lawns, but you are growing something different.

Besides the Rainbird 5006 rotor, there is the Hunter I-20 rotor, which can be had in a 6-inch popup height. The Hunter I-20 has no side inlet, which means that heads will be replaceable without digging, whereas side-inlet heads can't be simply unscrewed from their connection.

crice8

New Member

7

Wednesday, July 13th 2016, 4:37pm

As I have been researching, I have now run across rotary nozzles. If my max distance is under 24 ft from head to head, would it be a better option for me to use Rainbird 1800 SAM/PRS heads throughout my entire system with Rainbird Rotary Nozzles where the Weathermatic Turbo 3 rotor heads used to be?

crice8

New Member

8

Monday, July 18th 2016, 8:58am

Well I got out there and finally made a diagram and started mapping the distances and locations of the current sprinkler heads. What I found is that some are spaced further than I thought. The Turbo 3 rotors have spacing varying from 20ft to 34ft.

I'm am kind of stuck at how to proceed here. I installed some Hunter Pro Spray heads to replace some leaking spray heads on a small strip of grass where my yard meets my neighbors, and I really liked the quality of the body. This has got me really looking at Hunter rather than Rainbird. Where I am struggling, is trying to determine if I should go with some sort of rotors to replace the turbo 3's such as the PGP Ultra or PGJ, or if I should go with Hunter PRS40 heads and MP Rotators? I'm going to take pics today so that you can better see what I am dealing with as far as slopes and such. I have a few dry spots right now no matter how I adjust the turbo 3 heads for some reason. I thought it may be due to the slope of the lawn, but I have been doing cycle & Soak watering the last 3 weeks in an attempt to combat this.

Any guidance would be greatly appreciated.

Thank you.

crice8

New Member

9

Monday, July 18th 2016, 1:49pm

Well I went by a local Sprinkler supplier on my lunch break, and ended up buying some Hunter PRS40 heads! Talked to an irrigation contractor that was in there at the time and he spoke very highly of them. This supplier sells both rainbird and hunter and did not seem biased by any means. The pricing on the prs40 was onlt $5.75. Less than $1.00 more than the online cost without shipping. I was more than happy to pay that to support a local company. I'm still trying to determine which nozzles to go with though.

crice8

New Member

10

Thursday, July 28th 2016, 2:31pm

Well I ended up getting an amazing deal on some MP Rotator nozzles. $2 each! haha

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