Water Supply - RIDGID KJ-2200 User Manual

KJ-2200/KJ-3100 Water Jetting Machines
1. Check work area for:
• Adequate lighting.
• Flammable liquids, vapors or dust that may ignite. If
present, do not work in area until sources have
been identified and corrected. The jetter is not ex-
plosion proof and can cause sparks.
• Clear, level, stable dry place for machine and oper-
ator. If needed, remove the water from the work
area. Wood or other coverings may need to be put
down.
• Jetter location that is in a well ventilated outdoor
area. Do not place the jetter indoors, even with
doors and windows open. Jetter can be located re-
motely from the point of use.
• Suitable water supply.
• Clear path to transport the jetter to the set up loca-
tion.
2. Inspect the drain to be cleaned. If possible, determine
the access point(s) to the drain, the size(s) and
length(s) of the drain, distance to tanks or mainlines,
the nature of the blockage, presence of drain cleaning
chemicals or other chemicals, etc. If chemicals are
present in the drain, it is important to understand the
specific safety measures required to work around
those chemicals. Contact the chemical manufacturer
for required information.
If needed, remove fixture (water closet, etc.) to allow
access to the drain. Do not feed the hose through a
fixture. This could damage the hose and the fixture.
3. Determine the correct equipment for the application.
See the Specifications section for information on these
jetters. Drain cleaners and jetters for other applications
can be found by consulting the RIDGID Catalog, on
line at www.RIDGID.com or www.RIDGID.eu
4. Make sure all equipment has been properly inspected.
5. Evaluate the work area and determine if any barriers
are needed to keep bystanders away. Bystanders
can distract the operator. If working near traffic,
erect cones or other barriers to alert drivers.
6. If needed, place protective covers in the work area.
The drain cleaning process can be messy.
7. Take the jetter to the well-ventilated outdoor work
area along the clear path. If the machine needs to be
lifted, use proper lifting techniques. Use care moving
equipment up and down stairs, and be aware of pos-
sible slip hazards. Wear appropriate footwear to help
prevent slips.

Water Supply

Confirm that there is sufficient water flow for jetter. Run a
8
hose from the water source to the jetter. Use the largest di-
ameter, shortest length hose possible. A
minimum recommended size. An appropriate backflow
prevention device should be used to comply with all local
codes and ordinances. Turn the water on at the source and
measure the time it takes to fill a clean five gallon bucket.
See the following table for maximum bucket fill times for
each jetter.
Jetter GPM Rating
KJ-2200 2.4
KJ-3100 5.5
Insufficient water flow will prevent the jetter from reaching
the pressure rating and could damage the pump. Inspect
the water in the bucket for dirt and debris. Dirt and debris in
the water supply can cause excess pump wear, clog the jet-
ter filters nozzles and reduce performance. Do not use
water from ponds, lakes or other sources that may be
contaminated.
In cases of insufficient water flow, possible solutions include
using fittings to allow multiple supply hoses to be con-
nected to the jetter or the use of a tank.
If a tank is used, plumb a tee with full port valves to the jet-
ter water inlet as shown in Figure 9. Connect a
hose no longer than 6 feet (1.8 m) to the valve on the out-
let of the tee, and connect the water supply to the run of the
tee. Either place the hose end in the tank or connect to the
tank outlet. The entire length of the tank hose should be no
more than 5" (12.7 cm) above the jetter water inlet, or
the jetter will not draw water from the tank.
Hose To
Tank
Figure 9 – Water Supply Connections When Using A Tank
/ " I.D. hose is the
3
4
Maximum 5 Gallon
Bucket Fill Time
125 seconds
55 seconds
/ " (19 mm)
3
4
Water In To Jetter
Inlet Filter
Tee
Full Port Valve
Water Supply In