Flow detector/outlet shutoff

[Adit0]

I'm trying to engineer something so that when my ATS main drain becomes clogged and the emergency drain starts carrying water, this flow is detected and the pump feeding the ATS shuts off.

I was thinking either a flow meter on the backup drain/pipe or maybe some sort of optical sensor. Ideally I'm looking for a standalone system where I could connect the output of this sensor to the on/off state of the outlet powering the pump, as I don't have an apex or any other controller. However, a cheap controller system that facilitates this may also be viable, under $400 (ideally ~$200).

 

[Adit0]

bump, does anyone know of a sensor that can detect any water flow through a pvc pipe

 

[newfly]

Rig up a small container that will fill up from the emergency drain . Use something like this to detect water in the container and shut off the pump

https://www.amazon.com/AutoAqua-Smart-Skimmer-Security-Sensor/dp/B07C5R1SG7/ref=asc_df_B07C5R1SG7/?tag=hyprod-20&linkCode=df0&hvadid=241976029838&hvpos=&hvnetw=g&hvrand=12729533044507538019&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9032152&hvtargid=pla-617275565492&psc=1

 

[Adit0]

dang it who bought the last one

 

[newfly]

Smart Level Security - AutoAqua

Shop The Best Saltwater Aquarium Equipment & Supplies at Saltwater Aquarium. We Carry Everything you will Need for your Fish Tank.

www.saltwateraquarium.com

 

[Arvin R]

dang it who bought the last one

I think there's another listing for it that's available.