modern pools will have a
"sub-panel" at the equipment pad that houses the breakers
for the electrical equipment; i.e., the filter
pump, air blower, underwater light/ electrical outlet (GFCI), timer
clocks, landscape lighting, electronic
systems, etc.. This sub-panel is tied into the main panel inside
the house, which provides its power.
simpler pools may simply have a switch to turn the filter pump on,
and perhaps a switch for the underwater light. Remember that water,
weather, and electricity have never been friends. Loose wiring and
cover plates, broken conduit and connections can be hazardous. Exposed
wiring, for example, behind the flimsy, usually broken, protective
plastic in a timer clock, can easily throw 220 volts onto wet (or
dry) fingertips. Use caution and use common sense when operating your
equipment. If something looks negligent, call for service immediately.
your filter pump operate on a timer clock makes good sense. Most pools
have efficiency in sanitizing, filtering and circulation such that
they don't need to operate 24 hours a day. Pools are designed to "turnover" the
water in the pool in eight hours time. We commonly set time clocks
to operate 10 - 14 hours per day, depending on the efficiency of the
system, the ambient air temperature, amount of sunlight and debris
and the usage the pool receives.
commonly advise pool owners to operate the filter system during the
day, so that processes are active while the sun is beating down and
the pool is most likely to be in use. This would be something like
9 a.m. - 9 p.m. You may realize lower electrical consumption if you
didn't operate between 12 p.m. - 6 p.m.... peak sunlight hours....
a time clock is simple. Inside the box you'll see a 24 hour dial.
There are two "timer dogs" on the dial. One turns the timer
switch on, allowing power to go to the filter pump, and the other
turns the switch off, stopping power from going past the timer to
the filter pump. Loosening the small screw on the timer dog allows
you to slide the dog to any time on the dial. Reposition and retighten.
than one set of timer dogs allows you to run the pump in the morning,
and then late in the afternoon, to avoid peak usage times.
clock not switching On?
the breaker on? The clock and the switch will only operate with the
breaker on. There may also be loose wiring connections. (Check this
only with the breaker off). There may be a visual inspection window
to look at the timer mechanism and see if the gears are turning. If
they are not turning, the mechanism may need to be replaced. This
means that the clock motor is fried. If they are turning, check that
the dial is not bent, which would prevent the dogs from contacting
the switch as they come around. Also check that ants or other small
insects have not shorted out the contacts.
turn the timer clock off?
the clock is close to shutting off, the dog may prevent you from manually
turning it off by flipping the tab switch. Pull the dial out and turn
the dog past the switch. Remember to reset the time in this manner
you haven't got a timer on your filter pump, you probably should have. Timers vary
in price with the voltage, speed and switch requirement. They range
from $110 - $150. They may also be some connection fittings needed.
Usually one hour labor.
the mechanism in your timer box has given up the ghost, a replacement
pops in for under $100. Labor is definitely under one hour.