As freezing weather approaches or at the end of each spraying season, winterizing your FastBatch™ MultiJet system is just as critical as winterizing your sprayer to protect its internal components and not doing so may void your warranty.
1. Rinse with Clean Water
Begin by flushing the entire system, hoses, valves, pumps, meters, and the chemical manifold with clean water. This removes residual chemicals and minimizes risk of damage during winter.
2. Purge Every Component
Cycle water through each meter, pump, and electric valve to ensure all internal passages are fully cleared. This step is essential to prevent liquid from freezing and causing cracks or malfunctions. Note that if you choose to use air to clear the system, make sure to stay below 40 psi as higher pressures can damage some more sensitive components like the chemical meters.
3. Introduce RV-Safe Antifreeze
Use non-toxic RV antifreeze as a final flush:
- Pump or cycle antifreeze through each meter, pump, valve, and plumbing line.
- This creates a protective barrier against freeze damage, especially in hard-to-reach sections.
4. Final Rinse (Optional)
Some users choose to give a gentle, external follow-up rinse with water to remove excess antifreeze. Note: Avoid pressure washers closer than ~3 feet to components to prevent damage.
5. Store Securely
Although the FastBatch™ MultiJet is engineered for outdoor use, storing it under cover during the off‑season prolongs its lifespan and protects appearance. Although the FastBatch™ MultiJet is engineered for outdoor use, storing it under cover during the offseason prolongs its lifespan and protects appearance.
6. Review & Restore in Spring
Before reactivating the system:
- Inspect hoses, valves, pumps, and meters for any signs of wear or residual antifreeze.
- Perform calibration if necessary.
- Flush with clean water before normal operation resumes.
Why This Matters
Failing to winterize your FastBatch™ MultiJet properly can result in freeze-related damage, operational failures, and voided warranty coverage. Following the steps above ensures your system remains in peak condition and ready to deliver maximum efficiency when you need it most.