Abstract: A continuous sprayer has a trigger-actuated piston assembly within a cylinder. The trigger urges the piston assembly distally in the cylinder and a coil spring urges it proximally against action of the trigger. The piston assembly has a plunger portion and a hollow piston rod that extends out through a sliding seal in the cylinder distal end and on which is mounted a spray nozzle. The hollow piston rod contains a shutoff rod that cooperates with a standard spring bias ball valve contained in the plunger. At the distal end of the shutoff rod there is a seal to cause complete shutoff as the rod is urged against a compression spring and mates with a seat in the nut of the nozzle. A shutoff pin at the proximal end of the cylinder contacts the shutoff rod when the trigger is completely released and the piston assembly travels to its extreme proximal position.