pressure washing

August 25, 2021

“I also want to let you know how impressed I was with all of the JDI equipment. Every piece of equipment you provided was exceptionally well constructed. I am thoroughly impressed with everything!”

“Everything I have seen and heard so far indicates that they are very happy with the demuckers. They are even creeping into the building and washing trucks every chance they get as ‘trial runs’, even before the contractor has officially turned the project over to them.”  – Brian S.                                                                                                        

Issues: A very large mining operation was rehabbing its existing wash pad and adding a new one. As with most mining operations, most of their vehicles are very large and, therefore, can carry a large amount of solids into the wash bay. These solids get caked into every surface of the vehicles.

The engineers designing their new building contacted us to assist with washing and treatment equipment and maximize their wash bay design.

Solution:  We worked closely with their engineers to first design a very efficient solids handling and settling system consisting of trenches, sumps and a settling basin.

Once we completed the design, we recommended a number of washing systems to augment their pressure washing systems.  Due to the fact that they had a variety of vehicles and equipment, they decided on dual 20 GPM @ 1000 psi demucking systems, an undercarriage wash and monitor system for washing. One demucking will be used also be used to supply the undercarriage wash system.

For their application, we also developed a very effective cleaning system which included multiple compact water monitors placed strategically in the wash bay. Each monitor system will supply 100 gpm @ 100 psi. For easy movement, the wash monitors are attached to custom steel trollies that are mounted on steel rails inside the wash bay.  It can be easily customized with a wide range of nozzles selections.

Since they would be washing in different wash areas, we then coordinated with the electrical engineers to integrate all of the remote controls so the systems could be easily controlled by a small crew.

After washing, the water is treated so that it can be re-used by a complete self-contained system, capable of processing 100 gpm.  It is a Closed Loop Carbon Treatment System so there is zero fluid discharge to the facilities’ surroundings.  The system includes a clarifier oil water separator to remove oils, ozone to remove odors and multi-level filtration to remove of particles greater than 10 microns in size, substantially all emulsified oils, waxes and other volatile organic compounds.

All of the systems were easily upgraded to meet mine safety standards.

May 27, 2020

Gas Fired Pressure Washing System
Gas Fired Pressure Washing System

Our natural gas or propane-fired pressure washers are exceptionally well-engineered systems. Designed and manufactured for heavy-duty commercial and industrial washing operations, they will operate for years in the harshest environments.

Each machine offers our unique “variable flow” feature, which allows the operator to vary the flow rate and corresponding pressure at the wand when needed—providing flexibility when cleaning various surfaces.

Unlike other gas-fired washers that require maintenance every couple months, our washers are known for their long-lived, low maintenance heating systems and robust construction.


  • CSA approved for use with a Class B exhaust vent
  • Belt-driven with a multi-gun pressure regulating valve and an oil bath plunger pump with thermo-probe protection.
  • Trigger gun activated, flow switch controlled auto start/stop system with solid state time delay shutdown
  • Centralized systems for multiuser applications
  • Modulating gas thermostat control with steady temperature up to 200°F
  • 395,000 BTUH input rated heater with adjustable temperature controller and factory-set safety relief valve
  • Large capacity 3/4 in. schedule 80 heating coil with stainless steel wrap and 10 in. draft diverter
  • Dual or single lance/gun(s) with 50 ft. x 3/8 in. high
  • Low-pressure (downstream) or high-pressure (upstream) chemical injection
Pressure Washing Gas Fired System
Pressure Washing Gas Fired System

Factory Added Options

  • SRA – Surge Relief Assembly (for installation on water supply line when backflow preventer or check valve present)
  • ARS – Automatic re-light system for pilot light
  • LWPP – Low inlet water pressure protection with illuminated reset button
  • ETM – Hour Meter
  • CLS – Cleaning station assembly with ½’ ball valve and hose quick connect
  • CS-1 – Chemical injection station with adjustable chemical injector wash/rinse control valve and swivel connection
  • 2G40 – Additional G40 heater with extended frame for a total BTUH input of 790,000.


Gas-fired Pressure Washing Systems

Flow Pressure Motor Full Load Current (Amps) Size-Inches
MODEL GPM PSI H.P. 230V/1PH 208V/3PH 460V/3PH 575V W”xL”xH”
WB4011-G 4 1100 3 17 9.8 4.4 3.5 45/38/52
WB4019-G 4 1900 5 22 14.6 6.6 5.3 45/38/52
WB4029-G 4 2900 7.5 33 22.5 10.2 8.2 45/38/52
WB5430-G 5.4 3000 10 29 13.1 10.5 45/38/52
WB5620-G 5.6 2000 7.5 33 22.5 10.2 8.2 45/38/52
WB6012-G 6 1200 5 22 14.6 6.6 5.3 45/38/52
WB6020-G 6 2000 7.5 33 22.5 10.2 8.2 45/38/52
WB8012-G* 8 1200 7.5 33 22.5 10.2 8.2 45/38/52
WB8019-G* 8 1900 10 29 13.1 10.5 45/38/52
WB8029-G* 8 2900 15 40 18.1 14.5 45/38/52
WB1030-G* 10 3000 20 55.2 24 20 45/38/52

*Comes with two hoses and wands.

May 27, 2020


We specialize in high pressure pumping and washing systems for use in commercial and industrial cleaning applications. Our commitment to design excellence and quality workmanship, supported by qualified and responsive personnel, ensures superior performance in your high pressure cleaning or pumping application.


  • CSA approved
  • Fully automatic
  • Unique, reliable design
  • Belt driven ceramic plunger pump on most units
  • Auto start / stop circuit controlled by trigger gun activation
  • Automatic high temperature shut down (thermo probe) for optimum pump protection
  • Ideal for centralized systems with multi-station outlets
  • 50 ft. steel braid pressure hose, trigger gun, variable pressure wand and stainless steel nozzle
  • Powder coat painted base and pump cover

Cold Water Stationary Pressure Washing Systems


Model Flow GPM Pressure PSI Motor H.P. Size L”/W”/H”
WB210CS 2.1 1000 1.5 24/12/14
WB315CS 3 1500 3 24/12/14
WB411CS 4 1100 3 30/20/16
WB419CS 4 1900 5 30/20/16
WB429CS 4 2900 7.5 30/20/16
WB440CS 4 4000 10 30/20/16
WB530CS 5.4 3000 10 30/20/16
WB520CS 5.6 2000 7.5 30/20/16
WB612CS 6 1200 5 30/20/16
WB620CS 6 2000 7.5 30/20/16
WB812CS** 8 1200 7.5 30/20/16
WB820CS** 8 2000 10 30/20/16
WB830CS** 8 3000 15 38/28/19

**8 GPM or larger models have 2 sets of hoses and wands 

Options Available

  • SRA Surge Relief Assembly (must be installed on the domestic water supply when the supply line has a back flow preventer, pressure reducing or check valve present).
  • SA Nitrogen Charged Pump Pulsation Surge Arrestor.
  • USC Upstream Chemical Injection
  • WB Wall Mounting Bracket
  • LWPP Low Inlet Water Pressure Protection
  • ETM Analog Hour Meter


North Carolina


At, we have been specializing in high tech, custom-engineered solutions to complex washing and wastewater issues since 1991.
+ 1 800-453-8639


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