[Bigboat]

and just to clarify what i was hoping to do….
I was thinking the flow per station was some sort of average. Starting 90secs into it is great. I was going to get that avg flow and the time the station ran and save the avg flow per minute. Doing this for each of my zones. Then in ea of my zones I was going to pop off a head and get new avg. Anytime I saw that difference per station run I was going to shoot off an email to me to check the heads. And the reason I was going for a 1 min avg (maybe will do 2min or 5min) is because station times will vary based on weather adj.

[Bigboat]

@Ray thanks for the explanation. It makes sense. My concern comes from even after a full station run, which in the attached was 26m, the bottom of the screen still says flow 0.00. So I feel like something is amiss with the per station flow calculation.
When there is truly no flow I actually don’t get a “Total Water Used:..” line in the log. Which is how i previously knew there was no flow.
Unfortunately there is a neighborhood pump here that is frequently down.
Luckily with the recent MQTT additions I’m now just checking the rough expected volume from subscribing to opensprinkler/sensor/flow and I’ll use that to send me an email if the main pump is down.
But in the future I wouldn’t mind checking individual stations to see if there is a broken head but they always report 0.00 at the end.

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[Bigboat]

so just quick question i sub’d to root i wanted to see flow and i get back the following after running 2 stations:

offline
online
{"state":0,"duration":120,"flow":0.00}
{"count":5,"volume":14.15}
{"state":1}
{"state":0,"duration":120,"flow":0.00}
{"count":7,"volume":19.81}

You see the flow topic listed a count and volume. why does the station say flow 0.00?

[Bigboat]

ugh. now its not booting. i had unplugged rpi power to test it was actually powering and not just the ospi transformer. something must’ve shorted cause now that is the only power going to board. transformer alone does nothing to light up board. and i used multimeter to confirm it is working. board just won’t boot now.

[Bigboat]

Thanks. Yea being a pi 4 and I’m using wifi I already had the pis power connected with the opensprinkler transformer.
Confirmed with multimeter 0v is there.
I’ll try running the opensprinkler program as pi user. Maybe that fixes something.
I had just ordered new board causf my prior was doing same and thought maybe I messed it up on assembly.
But I am using same configured rpi so maybe its software side.

[Bigboat]

So I’m looking to do this as well. In lieu of waiting for future firmware updates I don’t mind using bash or python script to do this myself in the interim.
My thought it I simply need to pull avg flow from last run of each zone. If i can get that data I can have script just compare those values to what i expect and alert me (I’ll use twilio for sms alert), on any deviations.
So do you know best way to get the avg flow from each zone after it has run? I figure i don’t need realtime. I’ll just crontab my script to run daily.

[Bigboat]

yes i believe so.  The pump would be pumping water to a dead end.  so either the valve will break to release the flow or a pipe fitting or pipe.  My thought is if normal operating pressure is 20 psi then I’d configure the relief valve for like 25psi or 30psi.  This would prevent anything from breaking at least.

[Bigboat]

I might be answering  myself but i think something like this would do: http://www.watsonmcdaniel.com/v2/pdfs2010/directoperated/RSeries_10691Series_BackPressureReliefValves_162_163.pdf

[Bigboat]

this seems to explain it pretty well: http://waterheatertimer.org/pdf/How-to-Set-and-Troubleshoot-Intermatic-sprinkler-timer.pdf

#5 says the sprinkler valve advances each zone.  Does this mean even if i get this working I wouldn’t be able to, for example, just turn on zone 4?  I’d still have to cycle through them all like I do today?

[Bigboat]

And finally here are the pump specs attached.

So from amazon I’ll grab this: http://www.amazon.com/Orbit-57095-Sprinkler-Weather-Resistant-Outdoor-Mounted/dp/B000VYGMF2/

and this pump start relay you mentioned should work: http://www.amazon.com/Orbit-57009-Sprinkler-System-Horsepower/dp/B000I19I5E/ref=sr_1_1?ie=UTF8&qid=1425237870

 

I’m still lost on how this would wire up to the OSPi esp controlling the zones.  Any guidance appreciated.

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   sprinkler_pump.jpg
   

[Bigboat]

ok here are more pics of the intermatic wiring.  I have a pic with the yellow dial off.  I understand the wires coming from the circuit breaker, and the wires going to the pump, i’m just still not sure how this switches zones.  Seems to be 5 zones.  To switch to them with this I have to switch it off then to manual.  that fires on zone 1 or what I’ll arbitrarily call zone 1.  then I have to switch it off again and back to manual.  That clicks in the next zone.  So the second time I did it I labeled all the heads 2 where they were on.  Then I did it a 3rd time I labeled all those 3.  By the time I did it a 6th time my #1’s were coming on again.

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   intermatic_close.jpg
   

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   intermatic_behind_dial.jpg
   

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   zone_diagram.jpg
   

[Bigboat]

Here is the intermatic page on it http://www.intermatic.com/en/Products/TimeSwitches/MechanicalSwitches/SpecialtySwitches/R8800T8800/R8816P101C.aspx

 

yes the 240v ac is connected to a pump.  I’ll manually click through it tmr and see how many zones.  I’ll take apart a bit see if i can get some pics of how the zones are wired or how it switches to them.

[Author]

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