This is exactly what I wanted to do:
I want to operate valves 1 and 2 at time A
valves 3 and 4 at time B
valve 5 at time C
valve 6 at time D
Of course I would prefer that all valves will be independent but the above setup is realy good enough for me, the water pressure is good enough to open those valves in parallel.
My question was if there are not electrical current issues if I connect 2 valves to one port in the OSBee.