@alexsh1 - Thanks for the suggestion. I'll be curious to hear what you think of the TPL5110.

Thanks for all the suggestions and replies. I'll take all the info, weigh the options and then report back on what I end up doing.

@alexsh1 Which sensor should I replace the water pressure sensor with?

https://www.amazon.com/dp/B00RCPDCQU/ref=twister_B00RCPDQOI?_encoding=UTF8&psc=1&tag=wwwmysensorso-20

Eyourlife Universal 200PSI Pressure Transducer Sender Solenoid for Oil Fuel Gas Air Water C3

$18.99

1 available

@maah This video doesn't show different ways to power an arduino it's talking about power consumption. I'm already removing the regulator, LED and sleeping it. I'm more asking about battery powered nodes with sensors than are more than 3.3v. How are people feeding 5v to these sensors?

@tochinet Do have diagrams, pictures and sketches you've posted?

@alexsh1 like I said of course it would be preferred to use the 3v sensors but that's not always possible. My question is more about what are people doing when they are using a battery powered node with a 5v sensor.

@zboblamont - interesting thought on the pump pressure switch. It's not a dedicated water supply. I'm in an irrigation district and the line is pressurized by their pump which is pumping from a canal. It does go down at times and then one of my neighbors or I have to call and alert them to come out and get it going. Yes you would think they would have some sort of alarm on their system but apparently they don't. I use the water for watering lawn, pasture, and just added the filtering so I could water my animals. I may end up with more than one flow meter so I can measure water consumption in each pen. These are show animals and water consumption is important as it relates to nutrition and weight gain.

@zboblamont - Below are links to what I have but am certainly open to other options.

https://www.amazon.com/dp/B00RCPDCQU/ref=twister_B00RCPDQOI?_encoding=UTF8&psc=1

https://www.ebay.com/itm/G3-4-Hall-Effect-Liquid-Water-Flow-Sensor-Switch-Flowmeter-Meter-2-45L-min/272370070138?epid=1784055044&hash=item3f6a85727a:g:TfsAAOSwOd9a8pQu

Eyourlife Universal 200PSI Pressure Transducer Sender Solenoid for Oil Fuel Gas Air Water C3

$18.99

1 available

G3/4" Hall Effect Liquid Water Flow Sensor Switch Flowmeter Meter 2-45L/min

$10.79

97 available

@zboblamont - So you mean you're running two pro minis (3v and 5v)? That actually sounds kind of cool. So both of them are running off the 4AA is that correct? Do you have a wiring diagram/sketch for how you have that hooked up and working? I'd be interested in how that works because that sounds like a really slick way to do it.

Actually that's a good point about needing the continuous power for the water sensors. I actually would be fine without continuous power to the water pressure transducer but a flow meter I would probably need continuous power. What I'm designing is for livestock, specifically pigs in my case. For the pressure transducer I just want to know if there is pressure to their water supply so if it goes down I'll know right away so checking every few minutes is fine. But the flow meter is to measure their water intake and I'd need to have that running on continuous power to be able to measure that as they drink the water. I also want to measure water temp as the water is coming from a canal and if it gets to warm I want to know that. I put in a filter system this year and the pressure could also help me know if the filters need to be replaced. But your idea of running 3.3V and a 5V could make it possible to run them all off 1 radio. I am also considering running power to this location as well so I would then have a power supply but solar is also a good option.