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3 Pour the recommended amount of sand into the
)
tank, making sure that the centre-pipe remains
centred and vertical.
4) Level the surface of the sand upon completion.
5) Remove the Sand Fill Cover.
6) Carefully remove all sand particles from the valve
mounting surface.
7) Place the O-ring into the groove on the tank.
8) Lower the Multiport Control Valve carefully into
position so that its underside engages with the
centre-pipe. Rotate the valve until the inlet is
approximately in line with the pump.
9) Place the clamp set around the tank and the
valve. Secure using the screw provided.
10) Firmly tap with a rubber mallet outside of the
clamps as you tighten the screw.
11) Tighten the screw until the Multiport Control
Valve is properly assembled to create a water
tight seal. Do not over tighten.
FIGURE3.-Clamp Installation
tap with a rubber
mallet and tighten
the screws.
12 Install the pressure gauge into the threaded
)
opening on the Multiport Control Valve.
13 ) Install the union sets and the backwash union
set.
14 ) Connect pump to the control valve opening
marked "PUMP".
15 ) Make return to pool pipe connection to
control valve opening marked "RETURN".
16 ) Connect the waste water pipe to the control
valve opening marked "WASTE".
TYPICAL INSTALLATION
Pressure Gauge
Inlet
Waste
(From pump)
pipe
Outlet
(To pool)
Sand
Laterals
Drain
17 To prevent water leakage, be sure all pipe
)
connections are tight.
18 ) Prior to starting the filtration process by turning
on the pump, we highly recommend that you
read through the pump instruction manual to
ensure proper installation and to avoid the risk
of electric shock.
START-UP PROCEDURE
1 Be sure the correct amount of filter sand media is in
)
the tank and all connections have been made and
are secure.
)
2
Turn the Control Valve handle to the "Backwash" position.
Press the handle downward before turning.
)
3
Start the pump according to pump instruction manual
(be sure all suction and return lines are open).
4
)
Once water flow is steady out the waste line, run the
pump for at least 2 minutes. The initial backwashing
of the filter is recommended to remove any impurities
or fine sand particles in the sand media.
)
5
Turn the pump off and set the control valve to RINSE
position. Start pump and operate until water in sight
glass is clear about ½ to 1 minute. Turn pump off, set
valve to FILTER position and restart pump. Your filter is
now operating in the normal filter mode, filtering particles
and dirt from the pool water.
6
)
Take note of the initial pressure gauge reading for
future reference. Variation may occur from pool to
pool.
)
7
Adjust pool suction and return valves to achieve
desired flow. Check system and filter for water leaks
and tighten connections, bolts, nuts as required.
NOTE: During the initial clean-up of the pool water, it
may be necessary to backwash frequently due to the
unusually heavy initial dirt load in the water.
IMPORTANT: To prevent unnecessary strain on piping
system and control valve, always turn off the pump
before changing the operation of the control valve. To
prevent damage to the pump and filter and for proper
operation of the system, clean pump strainer (basket)
and skimmer basket(s) regularly.
MULTIPORT CONTROL VALVE FUNCTIONS:-
FILTER gives downward flow through the filter bed. This
position can also be used for vacuuming.
BACKWASH gives upward flow through the filter bed
that removes the dirt from the sand and carries it to the
waste.
WASTE is for pumping water from the pool. It allows the
flow from the pump to bypass the filter and go directly
to the waste. You can also use this position to vacuum
heavy concentration of debris.
RECIRCULATE bypasses the filter to circulate water
through the pool system.
RINSE gives a downward flow that settles the filter bed
after backwashing and carries any remaining loose dirt
to the waste.
CLOSED prevents only backflow of water from pool
during pump maintenance.
To WINTERISE, set the control valve handle in the middle
between RINSE and FILTER. This will allow air to leave or
enter the tank to help priming and draining. Only to be
used when the pump is off.
VACUUMING THE POOL
Light Soil: set the control valve to FILTER position.
Heavy Soil: set the control valve to WASTE position.
2-4
WINTERRISING
Backwash the filter for at least thirty minutes before
closing down the pool for winterising. This will clean
the filter bed thoroughly.
1) Drain the filter tank by removing the drain cap at
the base of the filter tank. Leave the cap off
during winter.
2) Set the control valve handle between the RINSE
and FILTER. This will lift the handle and help with
the draining process by allowing air to enter into
the tank.
3) Unscrew the pressure gauge from the control
valve and store the gauge indoor.
4) Drain and winterise pump according to pump
instructions.
5) Repairs should be made during the off-season
when the best service is available, do not leave
them until the next season.
TROUBLE SHOOTING
SAND ENTERING THE POOL
Sand too small; Flow too high; Sand bed calcified;
Broken Laterals; Loose centre-pipe; Too much sand;
Control Valve not engaged; Air accumulation in
filter.
SAND OUT OF BACKWASH HOSE
Flow too high; Too much sand in tank.
INADEQUATE FILTERING
Dirt build up; improper sand; Sand bed is too low;
POOL CHEMISTRY GUIDELINES
SUGGESTED POOL CHEMISTRY LEVELS
PH
7.2 to 7.6
Add Soda Ash
TOTAL ALKALINITY
100 to 130 ppm
Add Sodium Bicarbonate
CHLORINE (UNSTABILIZED)
0.3 to 1.0 ppm
Add Chlorine Chemical
CHLORINE (STABILIZED)
1.0 to 3.0 ppm
Add Chlorine Chemical
CHLOR！NE STAB！LIZER
40 to 70 ppm
Add Stabilizer
(Cyanuric Acid)
SPECIFICATIONS
MODEL NO.
MFV17
MFV20
MFV24
CODE
88012526
88012527 88012528 88012529
Effective Filtration Area (Sq Ft)
0.14
0.20
0.28
Max Flow Rate (LPM)
117
167
233
3
Max Flow Rate (m /h)
7.0
10.0
14.0
Turnover Capacity (In Gallons) - 8 Hour
15840
22176
30202
Turnover Capacity (In Gallons) - 10 Hour
19800
27720
33752
Turnover Capacity (In Gallons) - 12 Hour
23760
33264
45302
All Sand Required (kg)
40
70
125
A(mm)
816
889
980
B(mm)
695
772
860
C(mm)
625
712
800
D(mm)
195
225
280
E(mm)
425
500
600
Algae in filter; Excessive dirt in pool; Calcified sand
bed; Heavy swimmer load; Flow rate too high or too
low; Backwashing cycle too short; Backwash line too
small.
SHORT FILTER CYCLE
Dirty filter; Improper sand; Sand bed is low; Algae in
filter; Excessive dirt in pool; Calcified sand bed;
heavy swimmer load; Flow rate too high or too low;
B a c k w a s h i n g c y c l e t o o s h o r t ; C h a n n e l s l o w ;
Backwash adapter in wrong location; Channels in
sand.
FILTER LEAKS
Tank cracked; Drain plug not tight; Valve/Tank O'ring
damaged.
CONTROL VALVE LEAKS
Handle not properly engaged; Valve/Tank O'ring
damaged; Valve cover O'ring damaged. Pressure
gauge O'ring damaged.
ABNORMAL LOSS OF POOL WATER
Leak inside Control Valve; Leakage from pool or
piping.
HIGH PRESSURE FILTER
Dirty filter; Calcified sand bed; Return lines too small.
LOW PRESSURE IN FILTER
Control Valve incorrectly set; Pump running too slow
(plugged or clogged); Air leakage into pump
suction.
NOTE: If the recommendation in this manual do not
solve your particular problem(s), please contact
your local dealer for service.
ACTION REQUIRED TO CORRECT POOL CHEMISTRY
TO RAISE
TO LOWER
Add Muriatic Acid or Sodium Bisulphate
Add Muriatic Acid
No action-chlorine will naturally dissipate
No action-chlorine will naturally dissipate
Dilution-partially drain&refill pool with water
that has not been treated with Cyanuric Acid.
MFV27A
MFV27
MFV31A MFV31
MFV35
88012530
88012531
88012532 88012533
0.36
0.36
0.47
0.47
0.61
240
300
313
392
508
14.4
18.0
18.8
23.5
30.5
41184
42874
47309
52166
65261
51480
53592
59136
65208
81576
A
61776
64310
70963
78250
97871
185
185
320
320
430
1081
1133
1126
1178
1296
963
976
1008
1021
1139
903
910
948
955
1073
300
300
370
370
440
675
675
775
775
875
3-4
D
B
C
E
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