Page 1
I. PARTS:
A. Select-O-Spray (1 Each) TABLE 1
B. 3/8” I.D. X 8’ Long Tubing & Foot Strainer (2 Each)
C. Mounting Screw & Anchor (4 Each)
D. Metering Tip Kit (1 Each)
E. ½” I.D. X 50’ Long Red Garden Hose (1 Each)
F. Hose Hanger w/Mounting Screws & Anchor (1 Each)
G. Spray Gun With Nozzle (1 Each)
II. INSTALLATION:
A. Mounting and Water Supply.
Mount the unit on a vertical surface using the 4 screws provided thr ough the mounting holes in the cover. The water inlet is
equipped with a female garden hose fitting. The fitting may be removed to permit direct connection to 3/8" NPT pipe. Water
supply pressure should not exceed 125 PSI. Water temperature must not exceed 160 degrees Fahrenheit.
B. Outlet Connection.
Connect the discharge hose to the outlet garden hose fitting. Connect spray gun with nozzle to outlet end o f th e g arde n h ose . Th e
Select-O-Spray is designed to operate with spray nozzle flow rates not less than 4 GPM to tal at 40 PSI. Wh en a spray gun or
nozzle is used, hose lengths must not exceed those shown in Table 1.
DEMA MODELS 606T-ES
INSTALLATION INSTRUCTIONS
Hose I.D. 3/8" 1/2" 5/8"
Max. Length 15 ft. 50 ft. 100 ft.
C. Chemical Supply.
WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICAL S.
Place the chemical container in a conveni ent location no t more than six f eet below the Select-O-Spray. (Grea te r l if t s w i ll red u ce
injection capabilities). The top of the container should not be above the Select-O-Spray. Cut the viny l tubes to any convenient
length that will allow the tubing to reach the bottom of the container. Drop the tubing ends with the strainers into the chemical
containers. Push the other tubing ends over the chemical inlet barbs located on the sides of the unit.
III. FEED RATE ADJUSTMENT:
The chemical f eed rate is controlled by a metering tip screwed into the metering barb on the side of the unit. The feed rates can be
changed by using a different size metering tip, which is available through Dema (See parts list on page 4).
IV. OPERATION:
Select-O-Spray permits the operator to select one of two chemicals or clear water rinse by opening and closing the appropriate v al v e.
Only one valve should be opened at any time. If two valves are opened simultaneously, the injector will not induct chemical. When
using a spray gun make sure that the spray gun is in the fully open position when inducting chemical.
V. SERVICING:
CAUTION: TURN OF F WATER SUPPLY BEFORE SERVICING.
A. If unit fails to draw chemical.
1. Is more than one valve open?
2. Is the hose too long? (S ee Table #1)
3. Is the gun or nozzle( s) sized p rop erly? (Refer to Section II B). Remove gun and/or nozzle(s) and turn on water. If the
injector inducts chemical, the gun and nozzle(s) are improperly sized.
4. Is the metering tip b locked? Remove tip and clear blockage.
5. Is the hose kinked or otherwise obstructed?
6. Is the sp ray gun fully open?
B. If unit stops drawing chemical.
1. Is the foot st r ainer clogged? Lift from container and clean.
2. Are the spray nozzle(s ) partially clogged? Remove and clean.
3. Is the metering tip blocked? Remove and clean.
4. Is the injector ch eck valv e clogged? Unscrew the four cover screws to take the Select-O-Spray uni t o f f th e w al l . Rem o ve the
three ball valve handles to separate the cover from the manifold. Remove the square, plastic metering knobs to inspect the
check valve ball, spring and O-ring. (See page 5 for breakdown of injector.)
I-905 Pg. 1 of 5
Rev. --
Page 2
DEMA MODELS 606T-ES
INSTALLATION INSTRUCTIONS
CAUTION: WHEN SERVICING UNIT BE SURE THAT REPLACEMENT PARTS HAVE BEEN INSTALLED
ACCORDING TO DRAWING. BE CERTAIN CHECK VALVE PARTS ARE IN PLACE.
RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDIT WITHOUT DEMA’S WRITTEN
PERMISSION. RETURN MERCHANDISE AUTHORIZ ATION NUMBER RE QUIRED IN ADVANCE
OF RETURN.
WARRANTY: DEMA products are warranted against defective material and workmanship under normal use and service for one
year from the date of manufacture. This limited warranty does not apply to any products which have a normal life
shorter than one year or failure and damage ca use d by chemicals, corr osi on, impr op er voltage s up p ly, physical
abuse, or misapplication. Rubber and synthetic rubber parts such as “o”- rings, diaphragms, squeeze tubing and
gaskets ar e cons idered exp endab le and ar e not cover ed under war ranty. This war ranty is extended only to the
original b uyer of DEMA products. If products a re altered or repair ed without prior ap proval of DEMA, this
warranty will be void.
Defective units or parts should be returned to the factory with transportation prepaid. If inspection shows them to
be defective, they will be repaired or r eplaced without charge, F.O.B. factory. DEMA assumes no liab ility for
damages. Return merchandise authorization number, to return units for repair or replacement, must be granted in
advance of return.
I-905 Pg. 2 of 5
Rev. --
Page 3
DEMA MODELS 606T-ES
INSTALLATION INSTRUCTIONS
WATER
INLET
METERING
TIP
CHEMICAL
VALVE #1
CLEAR VIN YL
SUCTION TUBE
RINSE
VALVE
WATER/CHEMICAL SOLUTION
OUTLET (GARDEN HOSE
OUTLET)
CHEMICAL
VALVE #2
CERAMIC
WEIGHT
FOOT
STRAINER
I-905 Pg. 3 of 5
Rev. --
Page 4
13
DEMA MODELS 606T-ES
INSTALLATION INSTRUCTIONS
2
3
1
4
5
6
8
12
6
13
14
7
9
OPTIONAL ACCESSORIES
17
18
NO. PART NO. DESCRIPTION
1 66-153 Pipe Plug With O-Ring
2 65-100-1 Inlet Adapter Stem
3 65-10 Swivel Coupling
4 100-38 Strainer Washer
5 65-2 Ball Valve
6 202C-ES-LA Injector (See exploded view on next
page.)
7 76-2-3 Worm Clamp
8 99-5-11 3/8” NPT Pipe X 5 1/5” Long
9 66-99-9 Elbow Hose Barb
10 63-47 3/8” NPT Inlet Adapter
11
10
INLET
VENT
19
15
20
12 23-36-1 ¼” FPT X 3/8” Barb Adapter
13 61-9K Metering Tip Kit
14 100-12L Vinyl Tubing 3/8” I.D. X 8’ Long
15 61-107 Ceramic Weight
16 100-58P Foot Strainer
17 40-14HD-5GPM Heavy Duty Spray Gun & Nozzle
18 44-3R-50 Red Garden Hose ½” I.D. X 50’Long
19 44-89 Backflow Preventer (A.S.S.E. 1012)
20 44-4S Ho se Rack
21 66-54 #10 x 1-1/2” Screw & Anchor Kit (Not
16
Shown)
11 65-18-1 3/8” MPT X MGHT Outlet Adapter
I-905 Pg. 4 of 5
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Page 5
DEMA MODELS 606T-ES
INSTALLATION INSTRUCTIONS
202C-ES-LA INJECTOR BREAKDOWN
1
2
8
NO. PART NO. DESCRIPTION
1 23-7 Screw (4 Required)
2 23-35-1 Metering Knob
3 23-11 O-Ring (2-10)
4 24-24P Check Valve Ball
5 23-9 Check Valve Spring
6 23-34-3 Check Valve Core
7 25-29 O-Ring (2-12)
8 24-85-202C-ES Injector Body
9 24-8-8 #8 Water Nozzle & O-Ring
10 24-31-2 PVC Washer
3
4
5
6
7
9
10
I-905 Pg. 5 of 5
Rev. --
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