Winterizing a Jetter: Follow the Complete System Procedure

Residual water can damage equipment when it freezes. Winterization must cover the actual machine and its connected components; a generic antifreeze recipe or a quick blow-out is not proof that every passage is protected.

Start with the exact manuals

Identify the pump, jetter, heater if present, hose and nozzle. Use their approved storage procedure and temperature limits. Cat Pumps publishes extended-storage guidance; apply it only to the equipment and conditions it covers.

Confirm the approved fluid and mixture

Do not assume any pink RV fluid is compatible with every pump, seal or system. Fluid concentration and dilution by residual water affect protection. Follow the specified product, concentration, circulation and disposal instructions.

Account for the whole water path

Tanks, supply plumbing, pump passages, valves, gauges, reels, hoses, heaters and nozzles may retain water. Isolate the equipment and follow the documented process. Do not run a pump dry or improvise compressed-air pressure through components.

Inspect and store the nozzle appropriately

Use the nozzle’s cleaning and storage instructions. Check drilled jets or applicable inserts without enlarging or damaging their openings. Protect loose parts and record anything that needs service. A freeze event is a reason to inspect, not simply apply pressure to clear the ice.

Plan the restart

Follow the approved thawing, flushing, fluid collection and inspection process before operation. Check for leaks or damage under the manufacturer’s procedure. Storage protection is also relevant between winter jobs, not only at the end of the season.

For verified nozzle replacement parts, see the insert guide. Contact the machine or pump manufacturer for an uncertain winterization procedure.