Pentair Onga Leisuretime II User manual

LSFII
Sand Filter
ONGA®

Page 1
Cautions and Warnings
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.
Turn pump off before changing valve position
Do not unscrew MPV clamp while pump is running
All glued fittings and pipe work should be allowed to dry to atmos-
phere for 24 hours before closing the installation. Failure to do so
could cause injury or installation failure.
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
Filter Application 4
Installation/ Assembly 6
Operation 7
Start up 8
Service & Maintenace 8
Troubleshooting 11
Replacement Parts 12

Page 3
Specifications
Model Product Filter Area
ft2/ m2
Backwash Flow
Rate
(LPM)
Maximum Flow
Rate
(LPM)
LSFII-21-40 Leisuretime II Sand Filter
21” / 40mm MPV 2.1 / 0.2 120 190
LSFII-25-40 Leisuretime II Sand Filter
25” / 40mm MPV 3.2 / 0.3 180 260
LSFII-25-50 Leisuretime II Sand Filter
25” / 50mm MPV 3.2 / 0.3 180 280
LSFII-28-50 Leisuretime II Sand Filter
28” / 50mm MPV 4.1 / 0.38 230 350
LSFII-31-50 Leisuretime II Sand Filter
31” / 50mm MPV 5.4 / 0.5 270 415
Model A
(mm)
B
(mm)
C
(mm)
D
(mm)
Valve port
size
(mm)
Sand
(kg)
Glass
(kg)
Coarse Fine
LSFII-21-40 845 535 730 670 40 85 30 60
LSFII-25-40 950 635 835 775 40 145 45 90
LSFII-25-50 985 635 815 731 50 145 45 90
LSFII-28-50 1050 723 960 877 50 200 60 120
LSFII-31-50 1200 800 1085 1002 50 300 90 150
LSFII-25-50 & LSFII-28-50 LSFII-32-50LSFII-21-40 & LSFII-25-40
A
B
DC
A
C
D
A
B
C
D

Page 4
Filter Application - General Information
This filter is designed for use in domestic/residential swimming pool installations with correctly
sanitised fresh or salt chlorinated water. Suitable for use with sand, Zelbrite or glass filter media.
1. Locate the filter system as close to the pool as practical.
2. Place the filter on a level stable foundation, preferably a concrete pad or paving. Filter systems
loaded with sand and water can exceed 500kg.
3. Position all equipment to provide ease of access for future servicing.
4. Protect the filter and pump from weather and direct sunlight by ensuring that they are properly
housed.
5. Ensure there is sufficient space to provide adequate ventilation to electric pump motor.
6. Clean a new pool as well as possible before filling pool and operating filter. Excess dirt and
large particles of foreign matter in the system can cause serious damage to the filter and
pump.
7. Ensure pump is compatible with filter specifications.
8. For below water level installations ensure isolation valves are installed to reduce risk of
flooding.

Page 5
Installation / Assembly of Internal Components
Installation of filter should be only carried out by qualified personnel. Ensure that the under-drain
assembly (hub, laterals & tube) are properly assembled & installed prior to adding filter media
(sand).
1. The filter internals comprise of a collector hub and eight (8) laterals, which are supplied
packaged seperately with the collector hub and are stored inside the filter tank prior to
shipment.
2. Carefully inspect the laterals and hub prior to assembly for any visible defects.
3. Please ensure all laterals are hand tight prior to adding media, as they may have loosened
during shipping.
Loading Sand Media
1. To keep sand out off collector assembly, place plastic sand shield
over top of collector tube before pouring sand into filter (See
diagram below).
2. To support laterals and prevent lateral breakage during loadings, fill
tank about half full of water before loading sand.
3. Pour sand into filter, making sure that the sand is of the correct type
and quantity for the particular filter model (Refer filter label).
Make sure gasket area on top of tank is free of sand before installing
valve.
4. Before installing valve, double-check that the correct quantity of sand has been loaded.
5. Remove plastic sand loading shield and keep for future use.
Installation of Multi-port Valve
1. Install o-ring on valve flange; make sure o-ring is clean, and has no nicks, tears, or scrapes
and lubricate with silicon based lubricant.
2. Make sure tank and valve flanges are clean and free of sand; put valve on top of tank. Vertical
pipe of collector assembly inserts into base of valve.
3. Install clamp; make sure knob is positioned for easy access for filter maintenance. Valve port
labelled “Pump” should point toward pump.
4. Tighten clamp knob until clamp ends (under bolt) are 1/4” (6mm) apart. Tap around outside of
clamp with a mallet to help seat clamp.
5. Connect pipe from pump discharge to valve port labelled “PUMP”; use union provided.
Assemble union as follows for leak free operation:
- O-ring and sealing surfaces must be clean.
- Assemble hand tight only (No wrenches).
- NO pipe compound or teflon tape on unions.

Page 6
6. Complete all plumbing connections, using 1 1/2” (LSFII-21-40 & LSFII-25-40) or 2”
(LSFII-25-50, LSFII-28-50 & LSFII-32-50) pipe to reduce pressure losses as much as possible.
- Pipe from valve RETURN port to pool return.
- Pipe from valve WASTE port to waste.
- Suction piping from pool to trap inlet on pump.
7. System is ready to start up.
8. If you notice a leak around the clamp area after 15-30 minutes of running, repeat steps 3-4.
If there are leaks from beneath valve/clamp area, STOP PUMP, release all pressure by turning
valve handle to ‘waste’, remove clamp and valve and clean sealing surfaces

Page 7
Operation
WASTE
FILTER
BACKWASH RINSE
WASTE
RECIRCULATE
CLOSED
WASTE WASTE
WASTE WASTE WASTE
IN FLOW OUT FLOW IN FLOW OUT FLOW IN FLOW OUT FLOW
IN FLOW OUT FLOW IN FLOW OUT FLOW IN FLOW OUT FLOW
The operation and the positions of valve settings are as follows:
Valve Settings Function
Filter Normal filtration and vacuuming; water goes
through filter to pool.
Waste Lowers pool level or drains pool; water
bypasses filter, goes to waste.
Closed Shuts off all flow to filter and pool.
Backwash Reverses flow for cleaning; water goes through
filter to waste.
Rinse For initial startup cleaning and sand bed
leveling after backwash; water goes through
filter to waste.
Recirculate Circulates pool water; bypasses filter.
WARNING: TURN PUMP OFF BEFORE ADJUSTING VALVE

Page 8
Start up
1. Open system valve and make sure pump is filled with water. Make sure pool water level is 2”
(50mm) above bottom of skimmer opening.
2. With pump OFF, set valve to ‘BACKWASH’ position.
3. Start pump, circulating water through filter to waste. NOTE: To prevent pump running dry, be
sure water level never drops below bottom of skimmer inlet. Add water to pool if necessary to
keep skimmer flooded while back-washing and rinsing.
4. Backwash until water runs clear (1-5 minutes)
5. Stop Pump; set valve to ‘RINSE’ position.
6. Start pump; run pump for 1 minute. Note: for Zelbrite repeat steps 1 through to 6 three times.
7. Stop pump; set valve to ‘FILTER’ Position.
8. Filter is now ready for service.
9. Record clean starting filter pressure gauge reading as a reference.
10. For new pools, backwash once a day until pool water is sparkling clear. Backwash when
pressure gauge shows 5 to 7 psi (35 to 50kPa) higher than clean starting pressure (refer to step
9).
Service & Maintenance
Hazardous pressure. Stop pump and release all pressure from system before working
on filter, valve, or clamp.
General: Wash outside of filter with a mild detergent and water. Rinse off with hose.
DO NOT use solvents to clean filter; solvents may damage components in system.
Inspect sand/media bed at least once a year to remove foreign material which has not been back-
washed out of the system.
NOTE: When the sand/media bed gets hard and crusty on top, remove all the old sand/media
and replace it with new sand/media. Alternatively, if the pressure gauge does not return to within
40kPa of clean filter pressure after back-washing it is time to replace the filter media.
Weekly Pool Equipment Inspection
1. Check pressure during operation. When pressure is 5 to 7 psi (35 to 50 kPa) higher than clean
operating pressure, backwash filter (see instructions under Startup/Operation, page 12).
2. Except during hot weather with heavy skimmer loads, operating filter 6 to 12 hours per day
should be sufficient. Carefully monitor water chemical balance and follow recommendations of
your local pool professional.
Water Maintenance
Keep water level at least 2” (50mm) above bottom of skimmer opening. Failure to do so can allow
air to enter system, causing pump to lose prime and air to enter filter.

Page 9
Maintain pH between 7.2 and 7.6 in pool.
To prevent damage to system components, keep water temperature below 38oC at all times.
Vacuum Pool
(Refer cleaner operating manual or consult your local pool professional)
1. Fill vacuum hose by submerging in water from one end to the other.
2. To vacuum, insert hose into skimmer suction manifold or into vacuum line in pool wall. See
instructions provided by the pool builder or pool manufacturer. Start pump, making sure it is
primed and pumping.
3. After vacuuming, clean pump trap basket to remove accumulated debris, then check filter
pressure gauge. If reading is 5 to 7 psi (35 to 50 kPa) higher than initial operating pressure,
backwash filter.
Lower or Drain Pool
1. Turn pump ‘OFF’ ; set valve handle to ‘WASTE’.
2. Use Vaccuum cleaner hose and head.
3. Start pump; run until pool is lowered to desired level.
4. Turn pump ‘OFF’ set valve handle to ‘FILTER’
5. Start pump.
Multi-Port Valve Service
If valve is leaking during normal operation it will need to be repaired by an authorised Pentair
Water service technician.
Valve Removal
Hazardous pressure. Stop pump and release all pressure from system before working on filter,
valve, or clamp.
NOTE: If Multi-Port Valve is below pool water level, close suction and discharge
valves before disassembly to prevent draining pool.
1. Disconnect piping from pump and pool.
2. Remove clamp.
3. Remove valve from filter top.
4. To re-install valve, follow instructions, BE SURE to follow clamp tightening instructions.

Page 10
Maintenance
Your new product incorporates moving parts and withstands high velocity water with chemicals
in it. Some of these parts will wear in the normal course and use and require checks and
maintenance. Performing these checks and maintenance will identify parts that have worn and
require repair. replacement before further serious damage is sustained. A small amount of regular
care and attention to your pool equipment will help ensure long life and trouble free performance.
Timing Maintenance Service
Fortnightly Check pressure guage. If
pressure increase is greater than
20kPa cleaning may be required.
Perform backwash according to
instructions.
Three Monthly Check inlet/ outlet o-rings for
leaks.
Isolate Pump, turn power off, clean
and grease O-rings or replace if
necessary.
Annually Compare operating pressure
of backwashed filter into initial
pressure (when new).
If using Zeolite, regenerate
filter sand. This is important in
commercial applications as it aids
in the removal of ammonias.
If pressure is more than 30-40kPa
different from new filter, a sand
change may be required.
Add salt to filter sand per supplier.
Allow to sit for 24 hours then
backwash, rinse and return to
filter.

Page 11
Troubleshooting
Symptom Remedy
Filter startup pressure high and
water flow low
Filter requires backwash- Follow backwash procedure
outlined in manual.
Return line restricted- check for flow at return.
Filter startup pressure low and
water flow low
Skimmer basket full of leaves or debris- clear skimmer
basket of all foreign matter and debris.
Pump strainer lid not sealed correctly. - Refer to pump
owners manual for correct procedure for sealing strainer lid
correctly.
Pool water level is too low. - Fill pool correct level.
Pool impeller blocked- call an authorised service agent to
service pump.
Short filter cycles Filter dirty- filter not backwashed for long enough period.
Replace media (sand or Zelbrite)
Algae present in Pool water. - DONT RUN FILTER WITH LIVE
ALGAE IN POOL. Check the chemical condition of the pool
water and refer to Pool Water Chemical Treatment. Note:
Incorrect chemical treatment will greatly shorten filter life.
Leaking from filter tank joint Tank o-ring dirty
O-ring incorrectly fitted- or pinched
Clamp band not correctly fitted

Page 12
Replacement Parts
LSFII-21-40 & LSFII-25-40 LSFII-25-50 & LSFII-28-50
Item Part No. Description
LSFII-21-40 & LSFII-25-40
188280150 1. 5” Clamp Type Multiport Valve
289280705 Pressure guage Assembly
389280108 1.5” union with sight glass with O-ring
489280109 1.5” union
589010126 Stainless Steel Clamp Assembly
602011134 O- Ring for Filter Neck
789010122 LSFII- 21- 40 Standpipe with hub
89010123 LSFII- 25- 40 Standpipe with hub
801172008 Laterals ( 126mm)
901112074 LSFII- 21- 40/ LSFII- 25- 40 Filter Base
10 01181052 Fastener for Filter Base
Item Part No. Description
LSFII-25-50 & LSFII-28-50
188281506F 2” Top Mount Valve
289280705 Pressure guage Assembly
389280104 Sight glass assembly
489280110 2” union (3 required)
589010126 Stainless Steel Clamp Assembly
602011134 O-ring for Filter Neck
789010124 LSFII-25-50 Standpipe with hub
89010125 LSFII-28-50 Standpipe with hub
801172010 Laterals (185mm) (4 required)
989012516 Laterals bracket (4 required)
10 01172007 Laterals (115mm) (4 required)
11 01112074 LSFII-25-50 Filter Base/ LSFII-28-50 Filter
Base
12 01181052 Fastener for Filter Base (4 required)
6
12
3
7
8
11
10
9
5
2
4
1

Page 13
Replacement Parts
LSFII-32-50
Item Part No. Description
LSFII-32-50
188280351 2” Top Mount Valve
289280705 Pressure guage Assembly
389280813 Sight glass assembly
489280110 2” union (3 required)
502011126 Filter Neck Gasket
602011134 MB Nut + MB Washer (12 required)
789010122 LSFII- 32- 50 Standpipe with hub
801172008 Laterals (185mm) (8 required)
901112074 LSFII- 32- 50 Filter Tank with Base
1
2
3
4
5
6
7
8
9

Page 14
Item Part No. Description
MULTIPORT 2 IN. VALVE
189280702 MPV Handle Assembly
289280809 Lid Assembly 2" MPV
389280810 Seal Rotor and Gasket Kit 2" MPV
489280705 Pressure gauge Assembly
589280110 2" UNION
689280104 Sight glass assembly
789280811 Diffuser Assembly 2"
889010126 Stainless Steel Clamp Assembly
902011134 O-Ring for Filter Neck
NOT SHOWN
02010003 O-Ring Lid
07020496 Decal Lid
02011005 O-Ring Stem Pipe
8
9
1
2
3
5
6
7
4
USED ON
MODELS:
LSFII-25-50
LSFII-28-50
Item Part No. Description
MULTIPORT 1-1/2 IN. VALVE
1800770 MPV Handle Assembly (Includes 1, 2 &3)
2Pin for Handle
3Washer for Handle
4M6 x 25 Screw with Nut for Camber Lid
5800771 Lid Kit (Includes 4,5 &6)
6800774 O-Ring for 1.5” Valve Lid
7Washer for Spring
8Spring for 1.5” Top Mount Valve
9O-Ring for 1.5” Valve Rotor
10 800772 Rotor and Gasket Kit (Includes 7,8,9,10 & 11)
11 800775 Spider Gasket
12 1.5” Top Mount Valve Bottom Body Clamp
(Black)
13 1.5” Diffuser
14 O-Ring for 1.5” Union
15 1.5” Top Mount Valve Over Drain Diffuser
16 02020013 O-Ring for Union
17 1.5” Connector (White)
18 02011003 O-Ring for 1.5” Union
19 1.5” Union (A) (White)
20 89280109 1.5” Union Kit (Includes 16, 17, 18, 19 & 20)
21 01041002 1.5” Union Sight Glass (Inc 16, 17, 18, 20,
21 ,22)
22
23 Connector for pressure guage/ stopper
O-Ring
24 Drain Plug with O-Ring
25 89280705 Oil Pressure Guage Kit (Inc 23, 24 & 25)
USED ON
MODELS:
LSFII-21-40
LSFII-25-40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16
17
17 18
18
19 20
20 21
22
23
24
25
Replacement Parts

Page 15
1
2
3
4
5
6
7
8
Item Part No. Description
MULTIPORT 2 IN. VALVE
189280707 MPV Handle Assembly
289280301 M6*32 Screw with Nut
389280816 Lid Assembly 2” MPV
489280817 Seal Rotor and Gasket Kit 2” MPV
589280705 Pressure gauge Assembly
689280110 2” Union
789280813 Sight glass assembly
802011005 Diffuser Assembly 2”
Replacement Parts
USED ON
MODELS:
LSFII-32-50

Page 16
Notes

Page 17
Notes

Page 18
Notes

LSFII
Sand FIlters
IMPORTANT
Please attach your sales invoice/docket here as proof
of purchase should warranty service be required.
Purchased from:......................................................................................................................................
Purchase date: ........................................ Serial No.: ................................... Model No.: ......................
Head Office
Pentair AU/NZ: 1-21 Monash Drive
Dandenong South,
VIC 3175
National customer service: Phone: [phone]
Fax: [phone]
National dealer locator: Phone: [phone]
Email: [e-mail]
Web: www.pentairpool.com.au
© Information contained here-in remains the property of Pentair Australia Pty Ltd. Any reproduction, display, publica-
tion, modification or distribution is strictly prohibited without the prior written permission of Pentair Australia Pty Ltd.
Disclaimer:
Every endeavour has been made to publish the correct details in this document. No responsibility will be taken for
errors, omissions or changes in product descriptions, specifications. Pentair Australia reserves the right to change
specifications. L300284 A0717
Distributed in NZ By:
Freephone 0508 634 34
1
7 Monier Pl, Mt Wellington, Auckland 1060, New
Zealand