What i want is to connect a light in my 2 bathrooms to show that the other shower is on. The implication being that the other shower should stay OFF. Both running at the same time results in a very poor stream of water.
I’ve seen posts that say humidity sensor should dp the trick, but I need it to react fast on both sides as the morning routine changes often but it can happend that both bathrooms go on and off within minuites in between and i don;t want anyone to wait longer then needed.
(oh and i don’t want to cut in my pipes to insert a sensor that can tell me warm water is flowing)
Looks like the “shower stopped” will be the hardest one:
Humidity decreases slowly
Wet rainsensors dries slowly
A hot tap with warm water in it cools down slowly
Water sensor in the drain (probably too big)
Let’s approach it from the other side. If the shower is running you’re using hot water, right ?
Can you detect if the heater is running or your boiler is providing water ? You don’t need to do it in one of the showers, you just want to know if any of the showers is running.
So a flowsensor on the boilerside might be an option ?
I would even guess this goes for hot water from the kichentap also ?
If your hot water boiler is opentherm compatible, you can use this. Been using it myself for over a year to detect showering and to control the bathroom lights and water temperature when showering takes too long
Don’t have a boiler as we are connected to the city heating system ( hot water comes from outside ) but still… I should be able to see if the hot water is running. But not sure how to “sense” the hot water is flowing
In my installation i’m using a leakage sensor to switch on ventilation in bathroom. Working well and without problems, when double-side taped on wall, near floor behind the shower.
Not immediate reaction time ( requires someone is spreading water flow from shower/tap ) - but also does not gives false positives, when someone is just taking the water from tap.
