HydraMaster CDS 4.6, Owner'S Manual, Page: 34 / 126

5-1: Water and Chemical System
5 - Water and Chemical
System
The CDS 4.8 / 4.6 high-pressure water and chemical system has been designed to be
simple and trouble free.
This section of the manual explains:
Water and Chemical flow operation
„
Chemical System Maintenance
„
Chemical System Troubleshooting
„
WATER AND CHEMICAL FLOW OPERATION
The general concept of the water and chemical flow is as follows:
Water is fed into the CDS under tap pressure to the water box. •
The water is then pumped from the water box through the heating system, mixed with •
the chemical and then that mixed solution is pumped out to the cleaning tool/wand.
After the solution is applied to the carpet, it is recovered by the vacuum system and
•
carried back to the recovery tank.
The chemical pump draws the chemical from the inlet filter which is in the chemical
container. The chemical solution flows through the flowmeter, indicating the flow of
chemical being used in gallons/hour. The chemical then flows through the chemical pump
to the chemical selector valve. The CHeMICAl SySTeM valve can be used to prime the
pump (evacuate air from the system), inject chemical into the system or turn the chemical
flow off. When the CHEMICAL SYSTEM valve is in the “ON” position, chemical flows
through the metering valve, and is injected into the heated water path just prior to its
leaving the machine.
The low water float switch in the water box is a safety switch that is designed to protect
your system from sudden or unexpected loss of water supply. If, for example, the water
source at the house were turned off, the water level of the water box would drop, activating
the low water float switch, which automatically disengages the system and prevents the
water pump from running dry.
The desired chemical injection ratio may be obtained by adjusting the chemical metering
valve when spraying of water through the cleaning tool.