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Starting the Pump and Filter 

System 

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WARNING

1.
 components; Non-Original clamp 
components may fail in use and 
cause explosive 

component 

separation. Verify that upper and 
lower filter bodies are properly 
secured with the filter body

 

clamp. 

Never rely on hand tightening the 
clamp nut to the clamp bolt. Using a 
¾” socket on a torque

 

wrench, 

torque clamp nut to clamp bolt to 
150 inch-lbs. (See Fig 1) Verify that 
the filter manual air relief

 

body is in 

the LOCK position, and no filter 
components are missing, damaged 
or not genuine 

AquaPro

 

components. (See Fig 2)

Use ONLY Original 

plug requires an o-ring seal. (See 

Fig 4)

2.

Close filter drain. NOTE: Filter

3.

Open all system valves to allow

 water from the pool to the filtration 
system and from the filter to return to

 

the pool.

 

Before Starting the Pump

Starting Pump

1.

When starting system pump,

do not stand over or near filter. If
water leakage appears at filter tank
clamp,

 

immediately turn off all system

circulation pumps and all electrical
power. Do not return to the filter until
all

 water leakage has stopped.

Reassemble the clamp system per
the instructions on page 7 in this
owner’s manual to stop leak.

air relief valve only when a steady 
stream of water (not air or, air and 
water

 mix) is discharged from the 

manual air relief valve.

2.

Return to filter to CLOSE manual

Figure 2

Manual Air Relief shown open

Figure 1

Place the manual air relief valve

4.

in OPEN position. (See Fig 2)

WARNING

OPERATION

FILTERING

Filtration starts as soon as flow is 
steady through the filter. As the filter 
removes
dirt from the pool water, the 
accumulated dirt causes a resistance 
to flow. As a
result, the gauge pressure will rise 
and the flow will decrease. When the
pressure rises between 7 and 10 psi 
(.49 - .69 bar) above the starting 
pressure, or when the flow decreases 
below

 

the desired rate, clean or 

replace the filter cartridge elements. 
Once your filter is running and there 
is a pressure

 reading, line up the 

green arrow with the current reading. 
(See Fig 3) When the pressure rises 
to or above the red 

or second arrow, 

it is time to clean or replace your filter 
cartridge elements.

By recording the initial starting 
pressure (with clean filter

 

elements) a 

determination can be made when the 
filter

 cartridge elements should be 

replaced rather than cleaned. 

After the 

filter elements have been cleaned and 
reinstalled if

 the starting pressure is 

higher than 6 PSI above the starting 

pressure with the new filter cartridge 
elements, the filter

 cartridge elements 

should be replaced the next time the 
gauge arrow reaches the red arrow.

6

Summary of Contents for APF325PRO

Page 1: ...ONTAINS IMPORTANT INFORMATION ON THE OPERATION AND SAFE USE OF THIS EQUIPMENT THIS MANUAL IS INTENDED FOR THE END USER OF THIS PRODUCT CARTRIDGE FILTER FOR POOLS SPAS 877 278 2797 fax 877 289 2963 OWN...

Page 2: ...e of California to cause cancer and birth defects or other reproductive harm Wash hands after handling GENERAL SAFETY Read all manuals included with this product carefully Be thoroughly familiar with...

Page 3: ...ssional for more information This filter is not designed for backwashing If unit is plumbed backwards or backwashed it will damage the filter cartridge and will void the warranty Attention Installer T...

Page 4: ...ANCE B SIDE C ABOVE IN CM IN CM IN CM APF325PRO 37 94 18 46 16 48 TOP MANIFOLD CARTRIDGE FILTERS MODEL EFFECTIVE FILTRATION RATE DESIGN FLOWRATE Residential Commercial Net Weight FT2 M2 GPM LPM APF325...

Page 5: ...nter drain are convenient and accessible for operation service maintenance and winterizing 2 Position filter body such that all operation and safety labels are visible 3 Position filter so the filter...

Page 6: ...lve only when a steady stream of water not air or air and water mix is discharged from the manual air relief valve 2 Return to filter to CLOSE manual Figure 2 Manual Air Relief shown open Figure 1 Pla...

Page 7: ...ding both ends of the filter clamp carefully spread the clamp ends Remove the clamp by lifting over the upper filter body Do not to drop the clamp during removal because the clamp could be damaged Do...

Page 8: ...of algae calcium carbonate residue from calcium hypochlorite iron or other minerals soak the cartridge in a solution of one part muriatic acid to twenty parts water 6 fl oz per gallon of water until...

Page 9: ...er body in a position which allows all operation and safety labels to be clearly visible and the upper filter body to be centered on the lower filter body Press down firmly and evenly on the upper fil...

Page 10: ...the OPEN position 4 Wait until all water leakage has stopped 5 The air relief valve can be removed by screwing the whole parts counter clockwise This product should be installed and serviced only by...

Page 11: ...start up pressure the filter needs to be cleaned Refer to the Cartridge Cleaning section of this owner s manual Page 8 Winterizing Protect the filter from freezing If possible take the system indoors...

Page 12: ...ions in the Cartridge Cleaning section of this owner s manual Page 8 t Excessive air in filter Vent all air from the filter tank and check system for suction pipe leaks Also check and clean air bleed...

Page 13: ...5 4 8b Cartridge Element for 525 4 9 O RING 1 10 Adaptor 1 11a Outlet Pipe for 325 425 1 11b Outlet Pipe for 525 1 12 Inlet Elbow 1 13 Inlet Elbow 1 14 Bottom Seal Plate 1 15 Lower Filter Body 1 16 1...

Page 14: ...specific legal rights and you may also have other legal rights which vary from state to state In no event whether as a result of breach of contract warranty tort including negligence or otherwise shal...

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