Questions tagged [irrigation]

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4 votes
4 answers
559 views

Can anyone give a valid argument against running sprinkler wire in 1/2" pvc water line? [closed]

Most sprinkler systems directly bury the wire next to the water line. So, this is a big upgrade from that. The main purpose is to protect the wire from being cut if someone digs there. Why not use 1/...
0 votes
1 answer
88 views

Well pump reads 125v on each terminal but wont come on

When we bought the house the pump was wired directly to the breaker on a 240v circuit. I went to add an outlet and a sprinkler controller between the two. The picture shows the old vs new set up. The ...
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1 vote
2 answers
43 views

Looking for a irrigation system leak sensor? Is there such a thing?

I have an Orbit Wifi B-hyve controller and a three zones manifold. I am looking for a way to determine if the water flows through the irrigation system when it should not (ex one of the valves fails ...
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0 votes
1 answer
66 views

Is it ok to split the hose bib for underground irrigation

I'd like to install an underground irrigation system for 4 zones. There are 6 - 7 sprinkler heads with Hunter MP rotator nozzle per zone. The main poly pipe will be 1" and it runs to the most 1/2&...
2 votes
4 answers
428 views

Irrigation PVC pipes broken - how to fix properly?

I have discovered that two of my irrigation system pipes were broken when an internet cable was being installed. They stayed like this for some time, including when the irrigation system was working - ...
2 votes
1 answer
41 views

Auto on/off 12v DC timer for garden irrigation [closed]

I have 7 raised garden beds with irrigation setup. Irrigation consists of a 100w solar panel going into a 120w max Controller. This charges 2 12v DC batteries connected in parallel. The batteries are ...
0 votes
1 answer
49 views

Rainbird emitters not emitting water

Im adding a drip system to my backyard garden and plants. I’m adding rainbird emitters, both half gallon per hour and one gallon per hour. When I turn on the water though, no water is emitted through ...
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1 vote
1 answer
95 views

Does Size of Pipe from Water Meter to House Affect Water Pressure?

Our irrigation guy said our builder's plumber installed a 1 1/4" pipe from the water meter to our house. He said he had never seen anything but a 3/4" or 1" pipe run from the water ...
2 votes
2 answers
116 views

lawn irrigation valve box filling up with water

I noticed an irrigation control box filling up with water even when the sprinklers and gate valve were off. In order to trace the leak I removed approx 4 inches of dirt to reveal the fittings. I ...
  • 457
0 votes
3 answers
161 views

Is there a benefit of running a 1in pipe off a 3/4 pipe for irrigation

I have a 3/4 in. pex water line coming out of my meter to my house. I would like "T" that line and run a 1 in. pipe (or larger) off it. My question is, will I see an increase in flow in the ...
0 votes
1 answer
24 views

Control irrigation pump

I'm converting my irrigation system from a physical timer with physical valves to electronic control with solenoid valves. Previously the pump would turn on automatically by the physical timer, which ...
0 votes
1 answer
57 views

Is it possible for a drip irrigation pressure regulator to do its job without dripping or spraying water?

We have high pressure at our house and I'm trying to have a drip irrigation setup with low flow. The pressure regulator has a pretty decent stream of water coming out from the relief hole when the ...
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1 vote
2 answers
383 views

Why does my irrigation timer leak at the spigot connection?

I've been trying to set up a drip irrigation system in my small backyard. I bought a 3-outlet orbit irrigation timer, and have been trying to get it hooked up to a drip irrigation kit. I already had ...
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2 votes
0 answers
48 views

Backflow prevention fixture on my sprinkler system has started leaking -- is teflon tape the appropriate fix?

The backflow valve on my irrigation system has developed a minor leak at the threads I am pointing to. It's outside and not super fast, so not super urgent, but I would like to get it fixed eventually....
  • 1,057
0 votes
0 answers
46 views

Low sprinkler pressure - sudden onset

I have five sprinkler zones. Zones two through five are working well. Zone one pressure is so low that the heads don't even pop up. They trickle and flood the immediate area (a few square feet) but ...
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0 votes
1 answer
183 views

Preventing the pump from sucking air when the tank is empty

I have a pump connected to a water tank. The city water fills the tank through a (mechanical) float valve (to prevent overfill). And the pump's inlet is connected to both the tank's outlet, and also ...
0 votes
2 answers
88 views

How to prevent plant irrigation drainage from dripping into my downstairs neighbor's window?

We live in the second floor in this building: When we water our plants, the water drips into the window of our neighbor in the first floor, and she does not like it at all. We want to keep watering ...
1 vote
4 answers
181 views

How do I find a leak in a buried pipe?

There is a large amount of pipe of mixed materials buried on my two-hectare hobby farm by the previous owner. I do not know exactly how much or of what kind. Recently, a large leak appeared as ...
0 votes
1 answer
866 views

Adjusting pop-up sprinker range with the top screw

The previous owner of my home primarily used Rain Bird and Toro brand sprinklers (both pop-up and shrub types, all non-rotary) for irrigation, along with a few Orbit shrub risers in the front yard. ...
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2 votes
0 answers
85 views

Swimming pool as water barrel for irrigation

I have a 60 year old concrete swimming pool still in good condition but not used as a pool for 20 years. It is now a nature pool good for fireflies, bats, toads, ducks, etc. The original chain link ...
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0 votes
1 answer
62 views

Can non-"Lead Free" fixtures be downstream of potable water?

I have an "outdoor" water line that splits from the main line. This line feeds an outdoor sink that is technically drinking water but not used very often. It also feeds an outdoor shower. ...
  • 263
2 votes
1 answer
153 views

Sanity check on DIY drainage repair

Background: I have zero plumbing experience, hence the sanity check. Everything I describe here is brand new to me. My house is in a hilly area in Silicon Valley. All of the houses in this ...
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1 vote
2 answers
38 views

Identify coupling for irrigation winterization

I want to winterize my irrigation system myself, but I don't recognize the coupling I need to buy to attach to an air-compressor. This valve is between the cutoff valve and the back flow valve, and ...
  • 302
2 votes
1 answer
208 views

Can you run too big of a water pipe from the main?

I am putting in new irrigation and supply lines for my remodeled backyard and I've done my homework on water pipe sizing, but I'm left wondering if I'm installing too big of a pipe onto the main. The ...
  • 263
2 votes
1 answer
54 views

Can I eliminate irrigation vacuum breaker after installing upstream RPZ?

I have an atmospheric vacuum breaker on the feed from my meter to my lawn irrigation system. I am going to install a water-powered backup sump pump in the basement. (This uses city water pressure ...
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1 vote
2 answers
107 views

Pigtail Line Side of GFCI

Is it O.K. to put a pigtail on the line side of an outdoor GFCI to power an irrigation pump (via relay)? The outlet would be used for the irrigation controller and misc. outdoor electrical items. The ...
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0 votes
1 answer
153 views

Backflow preventer spewing water

I have a lf009mq2t watts backflow preventer which starts spewing water from its center nozzle anytime any of my three irrigation lines stops running (or if I run a hose while its valve is off). I can ...
0 votes
4 answers
139 views

How to manually turn on irrigation sprinklers

I recently moved into a new home & the previous owners didn't particularly maintain it. Among the things that are in disrepair, only a fraction of the irrigation system works. The popup sprinklers ...
  • 153
1 vote
1 answer
208 views

Water leak at outside copper-PVC pipe connection

The water supply to the irrigation system includes a connection between copper and PVC pipes, located a few inches above the ground. The PVC pipe connected to the copper pipe (blue in the picture) ...
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0 votes
1 answer
300 views

Why doesn't my sprinkler system work after making a repair splice in the wire? [closed]

I hit my sprinkler wire with a shovel while digging a trench for Termidor (for the exterminator). The cable is completely worn so that I can't read anything on it except that it's 18/5 Type CL2. It ...
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2 votes
1 answer
85 views

How do you recommend connecting polyethylene tubing to soaker hose?

To build a drip irrigation system for raised beds, I connected a polyethylene tube (carrying water to the plant beds) to soaker hose (used on the beds themselves). The PE tubing is 0.6 inches inside ...
0 votes
0 answers
63 views

Does hose bib affect Backflow Preventer/Pressure Vacuum Breaker?

I have a Pressure Vacuum Breaker (PVB) that I've installed that is 12" above the highest point of sprinklers, as recommended by install guides. I'd like to add a hose bib downstream of the PVB. ...
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0 votes
2 answers
275 views

Do I need to winterize black polyethylene sprinkler pipe?

A gentleman at the sprinkler supply store told me black polyethylene sprinkler pipe doesn't need to be protected from freezing; that it can handle the expansion. I'm looking for a second opinion on ...
0 votes
3 answers
93 views

GFCI won’t turn on

I’m replacing the 1pole breaker at the main panel with a GFCI. This feeds a boat house (underground) that has sub panel with two breakers, one for an irrigation pump the other for lights and a ...
0 votes
1 answer
67 views

How do I set the Rain Bird ST-8 2.0 to work with an indexing valve

Equipment: Timer: Rain Bird ST-8 2.0 Indexing Valve: K Rain 4000 4 zone I recently had a new irrigation timer installed, the unit I purchased required the use of a pump relay due to the voltage ...
-1 votes
2 answers
130 views

Irrigation Zone Off When Should Be On, On When Should Be Off

I have been replacing irrigation lines, switching from buried black poly lines to buried PVC pipes. Summary When I open Zone 1 (for sprinklers), the nothing happens. When I open Zones 2-5, then Zone 1 ...
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0 votes
1 answer
126 views

Using 1.25" SCH 40 PVC pipe to protect hose for irrigation

I'm setting up a simple irrigation system on my farm to deliver water to my fruit trees. What I want to do is to run a hose (a simple garden hose) through 1.25" schedule 40 PVC pipe to protect ...
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1 vote
1 answer
37 views

Irrigation system code

I'm doing research on what I want for my irrigation system and I have the following two questions: The City of Denver requires that the PVB be 12" from the wall as documented here. What's the ...
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0 votes
0 answers
32 views

Sprinkler Zone Drops in Pressure

I have a situation I've never seen previously. I have a zone of sprayheads (popups) that should have sufficient pressure, based on testing of the system GPM (15gpm) and the requirements of the six ...
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0 votes
1 answer
203 views

Can you use wirsbo/uponor/expansion pex for underground sprinklers?

I cant find much information around this online, it appears that its possible.
-1 votes
1 answer
46 views

How inaccurate and in which direction will a vertically mounted flow meter be?

I use several Netafim flow meters and I use them successfully without complaint. However, it has come to my attention that they cannot be used in a vertical orientation. I have two questions about ...
0 votes
0 answers
28 views

Sprinkler zone and valve identification issue

My sprinkler system has 4 zones that go to 4 valves. 1 goes to the front and 2-3 go to the back. All sprinklers are activated with these 3. However, zone 4 also activates its valve and I hear the ...
0 votes
1 answer
71 views

Rooftop garden irrigation: Some plumbing questions

I have several medium-sized planters on the roof of my building that need to be watered when I'm away. I have access to a standard garden faucet, but there is a "walkway" of sorts between ...
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-1 votes
1 answer
55 views

Water Meter Suggestion for someone on well water? [closed]

I am installing an underground waterline for irrigation by tapping into the home water line. Since I have well water I don't have a water meter. However, I would like to install a simple but ...
  • 77
0 votes
3 answers
803 views

Pressure Tank Size for a Variable Speed Submersible Pump

Information seems vague or non-existent from pump manufacturers. I need to know what size pressure tank is required for my setup, and all I'm getting is "doesn't need much" or "x ...
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-1 votes
4 answers
189 views

How to properly install irrigation system/garden faucet

I want to install an above ground irrigation system for our flowers (large flower farm). The part I am having trouble with is how to properly connect to the main water supply without having backflow. ...
  • 77
1 vote
2 answers
288 views

Found Well in Backyard -- How to install pump?

In my backyard there is this well, I think, that has water in it. As you can see, there is a well casing and then a pipe in between. I have no idea how to install a pump and such, and am not sure ...
0 votes
2 answers
51 views

Most efficient garden irrigation for rainbird kit?

I am using Rainbird brand irrigation kit to water my garden and am trying to find the optimal layout for the sprayers. The kit i bought connects from a standard garden hose to the 1/4" hose that ...
  • 355
-1 votes
1 answer
294 views

Lawn irrigation system with shallow well supplied water is slow to start spraying at sprinklers

My property has a lawn irrigation system that is supplied by a shallow well. It has worked satisfactorily for the last 4 years that I've owned the property. Recently the pump lost prime and I had no ...
2 votes
0 answers
104 views

For Drip Irrigation can I add a second backflow preventer after an anti siphon valve?

I'm installing a residential drip irrigation system for my home. I understand the need for backflow prevention and plan on using anti siphon valves. I have one area that is a full story higher than ...