Water Flow and Pipe Pressure

Sir,

yes i has to inject water into nozzles thru pipe with pressure of 2 Kg/Sq.cm.

Tank is at 5mtr level and water has to be pump thru pipe & at end of different location nozzles are fitted.

when water is pumping thru pipe, in that 2 Kg/sq.cm to be maintained.

pipe length is upto 5mtr from tank to nozzle end.

I am pumping water from tank to end of 5mtr level where i kept some clothes & by that pressure water it will be cleaned.(it acts like JACUZZI-showerbath).

for the above i reqd. answers.

I reqd to maintain 2 kg/Sq.Cm in the pipe coneected with 4mm of 25 Nozzles.

1) what will be reqd.flow in the pipe -?. in US GPM

2) What will be the pipe size ?.

3) what will be the pump capacity and pump head?.water tank is at 5mtr level.