20K Diesel Water Blaster Unit and Components Safe Practices

  • Read “Recommended Practices for the Use of Manually Operated High Pressure Jetting Equipment”
  • All personnel must be trained in safe operation of water blasting equipment
  • Never aim WB gun at your body or others. Remember that Zero thrust guns discharge water in both directions
  • Do not use damaged or leaking fittings
  • Inspect hoses, lances, and nozzles for leaks, obstructions, or other damage before use.
  • Never tie the gun trigger closed
  • Always brace for gun re-coil
  • Do not operate water blast equipment in pressure ranges outside of maximum working pressure.
  • Do not modify or alter any equipment.
  • Only replace gun tips with the same blast nozzles. Do not use different rated nozzles.
  • Change both tips when servicing Zero Thrust Gun
  • Flush hoses before replacing tips.
  • If rupture disc burst, before replacing find and determine cause.
  • When gun kits or tips are change, reduce engine “T” handle throttle valve clockwise completely before re-engaging the PTO. If not, the rupture disc will burst.
  • Never put a fan tip in the rear of the Zero Thrust Gun
  • Morgan City Rental 20K Water Blasters and Guns
  • 3400 straight tips and 3404 fan tips in the Zero Thrust Gun

Care and Use of High Pressure Hose

Following are All Hose & Specialty’s list of Do’s and Don’ts for the proper and safe handling of a high-pressure hose. The improper use of a high-pressure hose can cause DEATH, personal injury or property damage. NEVER handle a leaking hose assembly. Treat any injury form high-pressure fluid seriously and seek immediate medical attention.


  • Teat high-pressure hose with extreme caution. SPIR STAR hoses are wire reinforced hoses, not garden hoses and should be treated with the same care as a high-pressure containment vessel.
  • When using hoses for water jetting, read and understand Recommended Practices for the Use of Manually Operated High Pressure Water jet Equipment (Water jet Technology Association.
  • Always visually inspect for frayed, damaged, or wear spots before using.
  • Check the hose end connections and threads for wear, rust, cracks, mechanical abuse or other deterioration, which could produce a dangerous projectile.
  • Know the working pressure and burst pressures of all hoses before using them.
  • Always use clean, filtered water to prolong hose life. Some plants water sources are high in sulfur, which attack stainless steel.
  • Always clean, drain and coil hoses after use. Soda and water usually provide an excellent cleaning agent.
  • Always wear protective gloves, eyewear and garments when handling high-pressure hose and water jet lances.


  • Never use a hose with cuts or wire showing through the outer cover
  • Never use a hose that has been kinked
  • Don’t use a hose that has bubbles or blisters in the outer cover.
  • Don’t exceed the bend radius and pressure rating for each hose.
  • Don’t run over or crush the hose with heavy vehicles
  • Don’t use a hose with corroded or leaking end connections. Take them out of service immediately.
  • Don’t use hoses that have bee exposed to chemical attack or over temperature.
  • Avoid using dirty water or water with sulfur compounds in it.
  • Tests have documented that hoses fail more rapidly when using water sources from chemical plants and refineries.
  • Don’t bend the hose over scaffolding or pull heavy equipment with the hose.
  • Don’t let hose support its own weight off towers or buildings
  • Don’t expect water jetting or hydraulic hose to last forever.