Spray Machine, Fogger & Pump Repair in Karachi

Machines we repair

We have used, serviced and rebuilt these machines on our own jobs since 2005, so we know which parts wear first and which faults are quick fixes.

We repair machines whether or not you bought them from us, including Chinese sprayers and foggers.

How free WhatsApp guidance works

Many faults can be fixed at home in ten minutes once you know what to look for. Our first diagnosis on WhatsApp is free:

1. Send the model — a photo of the machine and its label or brand plate.
2. Send a 20-second video of the fault: the pump stroke, the spray pattern, the engine trying to start.
3. We reply with a fix — step-by-step instructions, or the exact name of the part you need.
4. Still not working? Book a drop-off at our shop and we take it from there.

For common problems you can also follow our troubleshooting guide.

Repair at our Karachi shop

Bring the machine to Shop #13-14, Al Hilal Co, B-30, Operative Housing Society, Karachi, Monday to Saturday, 9:00 AM to 7:00 PM.

• Bring it clean and empty. Drain all chemical and triple-rinse the tank with clean water before you come — we cannot open machines that still contain pesticide.
• We test it under pressure to find every fault, not only the obvious one.
• You get a quote before we start — no work is done without your approval.
• Turnaround is confirmed at drop-off; simple seal and valve jobs are often quick, engine work takes longer.
• Spare parts we commonly fit: seals, piston cups, O-rings, nozzles, lances, spark plugs, carburettor kits and ignition coils, where available for your model.

Common problems we fix

Sprayer not building pressure

Usually a dry pump cup or a check valve jammed with sand. See the fix.

Sprayer leaking at the cap or pump

Twisted gaskets, unseated O-rings or a dirty relief valve. See the fix.

Nozzle clogged or spraying unevenly

Dried chemical in the tip or a blocked filter — never clear it with a pin. See the fix.

Mist blower won’t start

Old fuel, the wrong mix ratio, or a fouled plug. See the fix.

Thermal fogger won’t ignite, or drips and flames

Battery, fuel pressure, carbon build-up or too much solution flow. Won’t ignite · Drips or flames.

Termite or HTP pump losing pressure

Suction leaks, a blocked strainer or worn valves and seals. See the fix.

Maintenance tips that prevent most repairs

• Rinse after every use. Run clean water through the tank, pump, hose and lance at the end of each day.
• Never store chemical in the tank. It attacks seals and crystallises in valves and nozzles.
• Lubricate pump seals with a non-water-soluble grease so they do not dry out and crack.
• Clean filters in the tank opening, lance and handle regularly.
• Use clean water. Sand and silt from unfiltered water are the number one cause of jammed check valves.
• Mix 2-stroke fuel correctly at the ratio in your machine’s manual, and use fresh fuel.
• Run foggers dry of solution before shutdown so the fog tube and nozzle do not clog.
• Store out of the sun. Karachi heat hardens plastic tanks and rubber seals.
• Do a pre-season check before the monsoon and dengue season, when you will need the machine most.

Safety when working on sprayers and foggers

• Depressurise before opening any tank, pump, hose or lance fitting.
• Wear PPE — gloves and eye protection — because residues of concentrated chemical stay inside machines.
• Never repair a fogger while it is hot; the resonator stays hot long after shutdown.
• Dispose of rinse water safely, away from drains, water tanks, fish ponds and gardens.

The manufacturer’s own guidance is useful too — see, for example, Solo’s sprayer repair support page.