19
IX. Erosion Feeder Operating Tips
•
Feeders must be sized properly. When automating an
existing system, multiple feeder may be required. The feed-
er should be able to attain desired levels in short operating
cycles. Automation becomes ineffective if the feeder must
run for prolonged periods.
•
The output of erosion feeders is dependent on the erosion
rate of the tablets. This erosion rate is dependent on the
water flow, contact area on the tabs, and temperature of
the water. Also, bromine tends to erode more slowly
than chlorine.
To maximize output:
1.
Fully open all valves into and out of the feeder,.
2.
Keep the feeder full at all times.
3.
If possible, use small tablets, not large pucks.
•
Erosion feeders are designed to maintain levels, not to bal-
ance the pool's chemistry. Erosion feeders should not be
used to bring a pool up to the desired levels. Use liquid or
Cal Hypo to raise levels to the desired point. Once the
desired level is reached, the erosion feeder can be used to
maintain these levels.
•
Feeders must be located on a separate bypass line with a
check valve between the solenoid valve and the feeder. It
is recommended that a flow indicator be placed in this
bypass line.
•
The coil/plunger on the solenoid valve should be
checked periodically for corrosive buildup that could affect
its operation.
•
The bypass loop for the feeder may be hooked up from
before the filter to after the heater. If it is, an inline
filter located before the solenoid valve is desirable to pre-
vent debris from entering the solenoid valve.
•
Erosion feeders are subject to potting (continued tablet
dissolution when the flow is off). As a result, the sanitizer
concentration in the feeder can be extremely high. When