Preparing for Long Term Storage

When storing WAZER for a long period of time it is good practice to clean and drain the unit before storage. This will prevent the growth of bacteria and mold inside as well as prolong the life of many of the internal seals. This procedure is crucial in winter when the WAZER needs to be protected from freezing temperature. Water expands when freezing, thus when water is left in WAZER it will destroy tubing, valves, and fixtures when it freezes.

The following is good practice when storing the machine however the importance during the winter can't be overstated.

It is recommended not to leave the WAZER or Pump Box in a sub-zero temperature environment for any amount of time. If you do, it is vital to purge water and wet abrasive from piping and other constrained areas. Not only because water expands when freezing; water retained in used abrasive will be pushed out and further exacerbates the expansion problem. This expansion will destroy piping and tank body if left unattended.

If you have to leave WAZER overnight in frigid weather, please follow these steps to properly purge the water out of WAZER main unit and Pump Box. Cutting any corners may result in piping rupture or valve failure, and render crucial WAZER systems destroyed.

When you are ready to use your WAZER again, bring the unit back into the warmth. You will then need to let all of the pieces come back up to room temperature before adding water.

Purging the WAZER Main Unit

Before draining the tank, please purge any residual pressure found in the high pressure system.

Remove the abrasive hose from the cutting head. Then navigate to “Setup & Maintenance” > “Input/Output Check” > “Output Check” > “HP Valve”. You will hear the HP Valve click, stay open for 7 seconds, and then click closed. Any residual pressure build up has been purged.

1. Shut off the water supply feeding your pump box.

2. Disconnect the High-Pressure Hose (exterior) from WAZER main unit. Please note that there will still be water in the line.

3. Turn on machine, on Control Panel go to Setup and Maintenance > Input and Output check > Output>HP Valve. At this point, you will hear the HP Solenoid Valve click open. It will stay open for 7 seconds.

4. During those 7 seconds, use compressed air to blow high-pressure air from the main unit high-pressure quick connect male and observe trace amounts of water coming out from the nozzle.

5. Blow until there is no water coming out from the nozzle.

6. Completely drain and clean the tank following the Full Tank Cleaning procedure. Make sure the water level and used abrasive level are below pickup filters bulkheads.

7. If the used abrasive level is too high, it is recommended to scrape some out, until pickup filters are exposed.

8. Unplug/unscrew drain filter from their sockets. Rinse them if needed, see this page for more information on cleaning the filters.

9. Push a compressed air nozzle into the drain filter bulkhead fitting. The cone shaped nozzle shown below should work well to create a seal.

9.a. If you do not have this shape nozzle you can use some of the leftover Low Pressure tubing to help! Cut 3 feet of #3 tubing, and 3 inches of #4 tubing from spare parts bag provided.

9.b. Insert 10mm of #3 tubing into the #4 tubing.

9.c. Jam #3 tubing into drain filter socket on the inside, feel the rubber gasket sealing the tubing. It is vital to keep maintaining a proper fit.

9.d. Connect #4 tubing end to the compressed air nozzle.

10. Gently press the compressed air lever to let the air flow in a controlled manner.

11. Look for water droplets/stream blown out from other Drain Filter socket, Pickup Filter end and Used Abrasive Grommet.

12. Observe the Venturi cavities. Make sure the cavities have at least 50% air. If possible, blow as much water as possible away from Venturi.

13. Remove the compressed air nozzle or unplug #3 tubing from drain filter socket, double check the tank; see if any water seeps out from used abrasive. Clear any amount of standing water you may see.