Pentair CristalFlo II, CFSF-25-40, CFSF-25-50, CFSF-21-40, CFSF-31-50 Owner's Manual

CristalFlo II

Sand Filters

AQUATIC SYSTEMS

Page 1

Cautions and Warnings

i

Hazardous Pressure

Incorrectly installed or tested equipment may fail, causing severe
injury or property damage. Read and follow instructions in owner’s
manual when installing and operating equipment. Have a trained
pool professional perform all pressure tests.

i

All glued fittings and pipe work should be allowed to dry to atmosphere for 24
hours before closing the installation. Failure to do so could cause injury or installa­tion failure.

i

The fittings on these filters are constructed of ABS. Some PVC jointing compounds
are incompatible with ABS possibly causing failure to the product. Check compound
suitability prior to use.

Page 2

Contents

Cautions and Warnings 1
Contents 2
Specifications 3
Installation 4
Operation 6
Maintenance 8
Troubleshooting 9

Page 3

Specifications

Model Product

Filter Area

ft2 / m

2

Backwash Flow

Rate

(LPM)

Maximum Flow

Rate

(LPM)

CFSF-21-40

CristalFlo II Sand Filter 21”
/ 40mm MPV

2.5 / 0.2 120 180

CFSF-25-40

CristalFlo II Sand Filter 25”
/ 40mm MPV

3.2 / 0.3 180 280

CFSF-25-50

CristalFlo II Sand Filter 25”
/ 50mm MPV

3.2 / 0.3 180 300

CFSF-28-50

CristalFlo II Sand Filter 28”
/ 50mm MPV

4.1 / 0.38 230 340

CFSF-31-50

CristalFlo II Sand Filter 31”
/ 50mm MPV

5.0 / 0.46 260 400

Model

Sand Required

(kg)

Zeolite Required

(kg)

Glass Required

(kg)

Coarse Fine

CFSF-21-40 80 75 35 45
CFSF-25-40 120 105 45 75
CFSF-25-50 120 105 45 75
CFSF-28-50 150 120 60 90
CFSF-31-50 200 165 75 125

Model

A

(inch)B(mm)C(mm)D(mm)

Weight

(kg)

CFSF-21-40 560 980 807 747 13
CFSF-25-40 665 1076 902 842 20
CFSF-25-50 665 1076 936 855 20
CFSF-28-50 742 1076 936 855 22
CFSF-31-50 816 1233 1093 1012 28

ØA

B

C

D