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Having a chemical tank provides a convenient way to dispense acid into your pool or spa to maintain the proper pH. A
chemical tank system also reduces overall maintenance time for the owner, and optimizes the pool chemistry over time.
The chemical solution (diluted muriatic acid) is contained
in a tank outside of the pool and is pumped through the
injection port after the spa bypass system.
Proper installation, such as the placement of the tank and
routing of the tube, is important. It is also important to take
all necessary precautions working with acid and installing
electrical wiring.
ACID TANK & INJECTOR SYSTEM INSTALLATION
Note: You should be qualified to install the electrical wiring
in accordance to all local, state, and federal guidelines.
Before starting, verify that: 1) you have a good electrical
grounding system, 2) check for the feasibility of installation,
especially if an injector port is provided or whether you’ll
have to install one, 3) make sure that the acid injector is
after the spa bypass system, and 4) that you have all of the
materials on hand before starting.
1. Locate a suitable location for the tank and a point of
injection within 10 feet of the tank. AVOID flooded
suction installations.
2. Once a location has been determined, verify that proper
voltage(s) can be supplied to the system with a proper
grounding-type receptacle. Verify the voltage of the
control circuit receptacle using a voltmeter or multimeter.
3. If not already installed, install the bracket and slide the
pump motor into the bracket from the top. Secure it with
the hardware provided. Add the rain cover.
4. Ensure the pump’s motor on-off switch is in the
OFF position.
5. Turn the motor switch to ON. Observe the rollers
turn continuously.
6. Turn the switch to OFF.
Install The Suction Line
7. Remove the 4” diameter fill cap from the tank. Inspect that
the tank is free from debris. Debris in the tank may clog
the filter resulting in poor pump performance.
8. Uncoil the poly tubing and insert it through the grommet
mounted on the front wall of the tank. Feed enough of
the tube into the tank through the grommet so that you
can pull it out through the 4” fill hole.
9. Install the suction filter. Remove the collet
from the filter by turning it CCW. (The
collet and filter mate with bayonet type
locking slots.)
10. Slide the collet onto the tubing until the
shoulder is approx. three inches from the
end of the tube (as shown). Reattach the
filter onto the collet.
11. From the outside of the tank, carefully
pull the tubing outwards. Pull out enough
of the tube to have the tip of the filter
suspended two to three inches (2” - 3”) from the bottom
of the tank. Note: Do not allow the weighted filter to rest
on the bottom of the tank.
Fig. 34 Acid Tank System
Chemical Tank System
3”
Suspend the filter 2” to
3” from the bottom
INSTALLING THE ACID FEED TANK
