controlling pump

[mak123]

Like below drawing, pump connects to tank and I need to control pump like this: (1) pump starts when pressure in pipe drop under 30psi, pump stops when pressure reachs 70 psi, and (2) pump stops when water in tank almost empty ( sensored by the float switch), pump starts when water full and pressure switch indicates less than 30 psi at the same time.(even water full, but pressure is over 30psi, no need to start pump)

So, I need to set up two power on-off switches, one is pressure switch the other is float swich.

Can anyone let me know who can I actually hook-up and set-up these two switches so that pump operates(stop and run) properly?

Thanks much