Did you even read the post? I didn’t say anything about anything being illegal.

It’s not about “stains.” It is killing plants. I have to replace both a plant the soil around it because dog urea has contaminated it and would kill the replacement plant too.

Spots on the lawn aren’t stains, it’s dead grass.

Rude, clueless and distracted dog walkers are letting their dogs repeatedly ”mark” the same spots over and over as their territory and this repeated concentrated urination kills plants. It’s also nasty.

I said I didn’t want a Scarecrow because the pointed stream it makes might overspray into the sidewalk enough to soak a passerby.

My lawn sprinklers has little overspray and won’t soak anyone unless they actually walked onto the lawn. Sprinklers are subject to run at any time.

I'm not aware of anything, but with some ingenuity off the shelf parts could be cobbled together to make your dream into a reality.

You'll need a motion detector, a relay, wiring, and an electrically operated valve.

Then when the offending parties arrive with their dogs marking territory, and even the old lady and her grand daughters strolling by, the motion detector will be triggered. It's circuit will close, which energizes the relay, which then closes the circuit to the electric valve. Moments later the sprinkler is pressurized and all dogs, dog walkers, and old ladies with granddaughters will be wishing they had stayed home.

So the only question is how many sprinklers are we going to activate? I think you want at least a minimum of 6. I'm thinking the motion detector should be strategically placed. So once it's tripped there's no escaping the sprinkling. Sprinklers activated front, rear, and sides.

I’m not actually trying to get people wet.

There is delay after activating the sprinklers before any water starts spraying, but you can clearly hear it winding up.

They wont get wet unless they are up in the middle of the lawn and move slowly.

Anyone walking by on the sidewalk won’t get anything on them other some minor overspray on their ankles and whatever the wind blows their way.

The sprinklers are already on a RainBird irrigation timer.

How would I be able to add the motion activated valve without interfering with the regular watering schedule?

If the existing irrigation timer is set to have the valve off at the time motion is detected, would the motion sensor valve even work?

Relays my friend.

When the timer is in the off position the circuit is open. It would need wired up so when the motion detector is tripped it energizes a relay that will bypass the rain bird to close the circuit.

I'm not at all familiar with the rain bird timer, so I'm not sure what it offers in terms of user mods to bypass anything. Does it have electric valves built into it?

This would be a fun project. It's like a puzzle.

I'm envisioning a 3 position relay. Closed circuit when the timer sends a signal. Closed circuit when the motion detector sends a signal. And an always open position so if there is no signal coming from anything the valve is closed.

You'll have to go on Grainger and start looking at relays.

Since I need this on the front yard, the hose-mounted sprinklers are a bit too aggressive.

Plus, you need to replace batteries, deal with the eyesore and manually turn it off when expecting landscaping service.

Check the video.

On the other hand, having the existing lawn sprinklers activated with be seamless, not change the appearance of the yard and could be managed via some kind of smart app on a schedule (or timer with days of the week) so you don’t need to remember to manually deactivate it on the days of your scheduled lawn and hedge trimming services

The motion detection relay to turn the sprinkler on needs to be able to automatically turn the sprinklers back off after a minute instead of leaving them running indefinitely though.

It also needs to be able to fine tune the detection zone so it picks up people/animals on or at the edge of the lawn, but doesn’t trigger from cars driving by a few feet further out on the other side of the sidewalk.

Oh shoot, now I want one too! That looks like good time!

Do you understand electric controls and schematics?

No. I can hire a sprinkler guy and an electrician if I can get all the needed parts for them.

Why do you keep trolling in this thread? You have nothing constructive to say.

What’s wrong with you?

Your posts are moronic and now you are going on about comparing this to shooting animals with guns now.

Troll somewhere else please.

I clearly said multiple times that I wanted to use the existing sprinklers because there is minimal overspray and will be less aggressive than the portable sprinkler on a hose. It does not shoot water out at people. They also have time to react and step back because it makes noises before any water actually starts flowing.

Turning on the sprinklers with motion sensors will not get any passerby’s any more wet than they would get than if they happened to walk by when they automatically turned on at scheduled run times.

Also, there is no sidewalk. My property goes all the way to the curb.

Dog walkers are walking in the street and letting their dogs walk up on to my property and mark their urine as each neighbors dog is in a literal pissing contest trying to claim it as their territory. One dog pees there, then the next dog tries to pee over the same spot to cover the other dog’s scent.

This kills plants.

Every post you make here is negative and designed for “stirring the pot” to get a reaction. That’s the definition of a troll.

I’m done responding to you.

Since you plan hiring pros to assemble the device,you may as well let them choose components they like working with. The key components used to disable motion triggered sprinklers at a specific day and time are a 24-7 timer coupled with a spdt/no-nc relay. To reduce number of dogs without re-inventing the wheel,simply set that station to run during peak dog walking hours. Meanwhile,squirt ammonia on the curb to discourage exploratory sniffing. Might add a few drops of diesel fuel for a lingering effect. .

Jaxo, I can't see negative posts by anyone, maybe they were deleted! I think you have a good idea, but don't know how to help.

The posts I was replying to are gone.

mtvhike,posting then deleting is a gamer trolls play. I wish GW would disable delete/edit after posting. Some forums don't alow delete/edit once posted and it sure make's people tink twice before spouting off. I recconize your handle as a long time user. Does member behavior seem to be worse since the GW days?

I think edit should be allowed, but not delete. If someone wants to retract their post, then they can edit it, but the post won't disappear.

That wouldn't solve the problem. A post could be edited by removing all the text (except a period if the software won't let a blank post be saved).

The person who posted and deleted often posts aggressive and/or disparaging comments. Best to never reply to him/her (or a few others who do that).

I think moderators deleted the posts

The posts weren't bad enough to be deleted by mods. I think the guy was just having a bad day/night/week and was taking it out on you. I envisioned him as the crazy guy you see sitting on the park bench yelling and having an argument with himself.

jaxo, did you ever find something? I was thinking of the exact same thing. I haven't had any luck finding something.