Pumps & Motors
Pool Filter pumps
heart of your circulation system, your
pool pump, pulls water from one or more
suction ports (i.e., skimmer & main
drain), and then pushes it through the
filter & heater (if you have one) and
back to the pools' return ports.
do I know what pump is right for me?
to the advice given when selecting a
filter, a bigger pump is not always a
good thing. Unless you have been advised
by a pool professional, or someone in
the know that your existing pump was
undersized, it would be wise to keep
the same horsepower as you have now.
do I know what Horsepower my pump motor
horsepower should be listed on the
nameplate (left) of the pump motor
(in very tiny letters - hp). If the
motor nameplate is burnt or worn off,
sometimes a part number of the impeller
(right) can tell us which hp your pump
the existing pump has done you well,
it is easiest to plumb and wire with
the exact same pump. The heights and
lengths are the same, which makes the
job a bit simpler.
all of the pumps at Poolcenter.com the
of the manufacturers of pumps represented
are Major Manufacturers; well respected,
very large, international market leaders.
The motors used on the pumps are all
nearly the same. There has not been any
really astounding inventions in pump
technology in the last few years, so
all innovations have been implemented
by most in one way or another. Each pump
is slightly different in its hydraulics,
shape, basket and lid, and colors. But
these may or may not matter a whole lot.
Read on for more substantial ways to
discern between pumps.
will find that there are low head pumps
for aboveground pools and medium and high
head pumps for inground pools. "head" refers
to the flow rate, in a backwards kind
filter systems and small inground
pools (under 10,000 gals) should
use a Low Head pump like a Maxim,
or Dynamo or Power-Flo.
from 10,000-20,000 gals can use
a Medium Head pump like a SuperPump,
a Pinnacle or Cygnet.
over 20,000 gals could possibly
use the High Head pumps like, Super
II, Challenger, Ultra-Flo
or the Sta-Rite
Spa combos with at least 3 lines
influent and 2 - 3 back to the
pool, 2" plumbing may be able
to handle the Ultra High Head pumps
like the WhisperFlo.
to match hp and
pump type and flow
rate. Use the Flow Rate Charts, (see
below) based on a sample feet of head
(vertical axis) of 40 or 50 feet. This
is the only true way to compare pump
Americans, it's natural to want the big
V8 power plant, but a pump that is too
powerful could actually prevent filtration
while damaging the filter and heater.
Pipes or fittings could even be blown
apart. When matching pumps to filters,
check the Design Flow Rate of the filter
from the nameplate. The average flow
for the pump you select, should be within
10% of the filter's Design Flow Rate.
also, that a smaller hp motor is going
to draw fewer amps, which is going to
cost less to operate. If you are careful
to match up flow charts, you could actually
reduce the hp required, while increasing
the head of the pump. For instance, a 3/4
hp Whisperflo produces the same amount
of flow as a 1
1/2 hp SuperPump. So, you could replace
one with the other, while electrical
costs are nearly cut in half!
when selecting a pump, keep it close
to the original specifications, and
use the Flow Charts. Most systems could
handle a small increase in pump size,
especially if you are replacing the
filter with a larger one.
water is moved by a brass or plastic impeller that
is shaft driven by an electric motor.
On the way to the pump, the water is
under suction or vacuum. After the impeller,
the water is now under pressure until
it is released into the pool. The 3/4
- 2.0 hp motor is powered from a breaker
on your electric panel (or fuse box),
at 115 or 230 volts. Usually motors over
2 hp need 230V power to operate, and
most smaller Hp pumps convert to accept
either 115 or 230 volts. Above ground
units may plug into an 115V GFCI outlet.
(Be sure to buy a Pump that will match
the correct voltage going to your existing
power supply). Electrical consumption
will vary by area, however, manufacturers
have been designing motors and pumps
(the wet end) which are more efficient
and consume much less energy than older
pumps. The smaller the Amp draw of the
motor, the less expensive it will be
to operate. (continued........)