SYMPTOM

POSSIBLE CAUSE

REMEDY

Pump is difficult to operate, or does not appear to be creating pressure

Piston ‘O’ ring (58) is dry or damaged.

Lubricate or replace piston ‘O’ ring.

Piston rises after pumping.

Footvalve (60) damaged or dirty.

Replace footvalve assembly.

Pump is operating, but pressure is being lost from container.

Pump not screwed in tight.

Pump sealing ‘O’ ring (59) damaged.

Tighten pump carefully - BUT DO NOT OVERTIGHTEN.

Replace pump sealing ‘O’ ring.

Container has pressure but will not spray.

Blocked strainer (44) in trigger valve, or blocked nozzle.

Remove and clean the strainer or nozzle by flushing with water.

Poor spray pattern, even though all strainers appear clear and there is pressure in the container.

Nozzle partially blocked, or damaged

Remove and clean, or fit a new nozzle. Never use a metallic object to clean the nozzle, it will ruin the spray pattern and render it useless.