Aqua-Pure CBF150 - Manual (Page 5)

Check Your Water Pressure And Pumping Rate:
Two water system conditions must be checked carefully to avoid unsatisfactory operation or equipment damage:
1) Minimum water pressure required at the fi lter tank inlet is 20 psi (138 kPa).
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Do not install if water pressure exceeds 100 psi. If your water pressure exceeds 80 psi (552 kPa), you must install a pressure limiting valve. Contact
a plumbing professional if you are uncertain how to check your water pressure.
IMPORTANT NOTE IMPORTANT NOTE
If you have a municipal or a community water supply and daytime water pressure is 80 psi (552 kPa) or more, nighttime pressure may exceed
100 psi (689 kPa). Call your local water department or plant operator to obtain pressure readings. If you have a private well, the gauge on the
pressure tank will indicate high and low system pressure. Record your water pressure data below:
Water Pressure
Low _________psi High _________psi
2) The pumping rate of your well pump must be suffi cient for satisfactory BACKWASH. Although the density of a media normally determines the
backwash rate, all the media discussed earlier will require the same fl ow rate. Refer to SPECIFICATIONS AND OPERATING DATA for the backwash
requirement for models CBF100, CBF150 and CBF200. To measure the pumping rate of your pump, follow these instructions:
a. Make certain no water is being drawn. Open spigot nearest pressure tank. When pump starts, close spigot and measure time (in seconds) to
refi ll pressure tank (when pump shuts off). This fi gure represents CYCLE TIME.
b. With the pressure tank full, draw water into a container of known volume, measure the number of gallons drawn until the pump starts again.
This is DRAW-DOWN. Divide this fi gure by CYCLE TIME and multiply by 60 to arrive at the PUMPING RATE in gallons per minute (gpm). To aid in
you calculation, insert the data in the following formula:
DRAW-DOWN ______ ÷ CYCLE TIME ______ x 60 = PUMPING RATE ______
(gals.) (secs.) (gpm)
EXAMPLE: CYCLE TIME is 63 secs.; DRAWDOWN is 8 gals.; then PUMPING RATE equals:
8 gals. ÷ 63 secs. x 60 = 7.6 gpm
Locate Water Conditioning Equipment Correctly:
Select the location of your Backwash Filtration System with care. Various conditions which contribute to proper location are as follows:
1) Locate as close as possible to water supply source.
2) Locate as close as possible to a fl oor or laundry tub drain.
3) Locate in correct relationship to other water conditioning equipment.
4) Allow suffi cient space around the unit for easy servicing.
The Importance Of Your Pressure Tank:
A PROPERLY SIZED PRESSURE TANK WILL REQUIRE A MINIMUM PUMP CYCLE OF 60 SECONDS TO REFILL FROM PUMP ON-TO-OFF PRESSURE SET-
TINGS.
NOTE: If your pressure tank (or any part of your water system) is not functioning properly, corrective action MUST be taken before installation of your
system.
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