This pump is running every three to five minutes, even there is no tap or toilet in use in the house.
The pump runs for 5 to 10 seconds and then stop again.
Somewhere in the House I am loosing water or pressure.
I already identified the toilette in the 3rd floor, where there was a constant stream of water - very very small. I closed the tap of this toilette (not in use currently).
The frequency of the pump running decreased from every 2 minutes to every 3 to 5 minutes.
There must be another point / place in the house, where water is leaking.
I need a person who systematically can check the piping in my house.
By closing all taps / sections one after the other and searching for the point, where the system loses water or / and pressure.
And when we identify the point, the person (if possible) should give an idea or plan how to fix it.
In a cost effective way - without tearing out all the walls from bottom to the roof.
The person best comes to my house and have a look.
If she has / needs special tools and equipment for that, I will provide the transport if necessary.