How to send water to over head tanks for 4 portions without any gate valves?

Sir,

My problem is how to send water to over head tanks for 4 portions without any gate valves. I am connecting the motor to all the 4 portions of power supply so that who ever switches the motor on in their portion will get the current bill.

But with gate valves, only that individual can get his water with his power. Now how to send the water to that persons water tank when he switched on the motor with out any gate valve operated, instead, automatically water should go to the respective tenent's O.H.Tank when he switches his power on.

Thank you. Expecting a solution.

JPS Sastry
Mobile no. 9133904839

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