Neptune SF500 User manual

SAND FILTERS
Models: SF500, SF650, SF700 & SF800
FUNCTION
The filter uses special filter media to remove dirt particles from pool water. The filter
media is loaded into the filter tank and functions as a permanent dirt removing
media. When the multiport valve is in the FILTER position, the pool water which
contains suspended dirt particles, is pumped through your piping system and is
automatically directed by the patented filter multiport valve to the top of the filter
tank. As the pool water is pumped through the filter, dirt particles are trapped by the
media bed, and filtered out. The cleaned pool water is returned from the bottom of
the filter tank, through the multiport valve and back to the pool through the piping
system. This entire sequence is continuous and automatic. It provides for total
recirculation of pool water through your filter and piping system.
After a period of time, the accumulated dirt in the filter causes a resistance to flow,
and the flow diminishes. This means it is time to clean your filter. With the multiport
valve in the BACKWASH position, the water flow is automatically reversed through
the filter so that it is directed to the bottom of the tank, up through the media, flushing
the previously trapped dirt and debris out the waste line. Once the filter is back-
washed of dirt, set the multiport valve to the RINSE position and run pump for about
15 to 30 seconds, and then set the multiport valve in the FILTER position, to resume
normal filtering.
NOTE: Turn pump OFF before changing the multiport valve position.

INSTALLATION
Only simple tools plus pipe sealant for plastic adapters are required to install and
service the filter.
1. The filter should be placed on a level concrete slab, very firm ground, or
equivalent. The filter should be placed in the right position so that the piping
connections, multiport valve are convenient and accessible for operation and
service. Position the tank with MPV in place to determine final position for piping.
2. Filter media is loaded through the top opening of the filter.
a. (For 500/650) Loosen the flange clamp and remove filter multiport valve (if
previously installed).
a. (For 700/800) Loosen the flange Nuts and remove filter multiport valve (if
previously installed).
b. Cap internal pipe with plastic cap to prevent filter media from entering it.
c. We recommend filling the tank approximately 1/2 way with water to provide a
cushion effect when the filter media is poured in. This helps protect the under-drain
laterals from excessive shock.
d. Carefully pour in correct amount and grade of filter media. (Be sure centre pipe
remains centred in opening.) Media surface should be levelled and should come to
about the middle of the filter tank. Remove plastic cap from internal pipe.
3. Assemble filter multiport valve onto the filter tank.
a. Insert multiport valve (with O’ring or casket in place) onto the tank neck, taking
care that the centre pipe slips into the hole in the bottom of the valve.
b. (For 500/650) Place clamp around valve flange and tank flange and tighten just
enough so that the valve may be rotated on tank for final positioning.
b. (For 700/800) Place nuts on all studs around valve flange and tighten just enough
so that the valve casket seals (Do not over tighten).
c. Carefully screw pressure gauge (with tread tape) into tapped hole in valve body.
Do not over-tighten.
d. Connect pump to multiport valve opening marked PUMP. After connections are
made, recheck to ensure nuts or clamp band on multiport valve flange are tight.
4. Make the return to pool pipe connection to multiport valve opening marked
RETURN and complete other necessary plumbing connections, suction lines to
pump, waste, etc.
5. Make electrical connections to pump per pump instructions.
6. To prevent water leakage, make sure all pipe connections are tight.

MAIN DIMENSION
DIMENSION TABLE
MODEL
Height
mm
A
Diameter
mm
B
Valve
port size
mm/inch
Sand
Kg / bags
Zeolite
Kg / bags
Coarse
Glass
kg / bags
Fine
Glass
kg / bags
SF500
845
535
40 / 1.5
80 / 4
60 / 4
25 / 2
40 / 3
SF650
950
635
40 / 1.5
140 / 7
105 / 7
45 / 3
60 / 4
SF700
1020
710
50 / 2.0
220 / 11
165 / 11
60 / 4
105 / 7
SF800
1200
800
50 / 2.0
260 / 13
195 / 13
75 / 5
120 / 8
INSTALL/START-UP OF FILTER
1. Make sure the correct amount of filter media is located in the tank and all
connections have been connected and secured.
2. Depress multiport valve handle and rotate to BACKWASH position. (To prevent
damage to multiport valve seal, always depress handle before turning.)
3. Prime and start pump according to pump instructions (be sure all suction and
return lines are open), allowing the filter tank to fill with water. Once water is flowing
out of the waste line, run the pump for at least 1 minute. The initial back-washing of
the filter is recommended to remove any impurities or fine particles in the filter media
4. Turn pump off and set valve to RINSE position. Start pump and operate until water
in sight glass is clear, about 30 seconds. Turn pump off and set valve to FILTER
position and restart pump. The filter is now operating in the normal filter mode,
filtering dirt particles from the pool water.
5. Adjust pool suction and return valves to achieve desired flow. Check system and
filter for water leaks and tighten connections, bolts, nuts, as required.
6. Note the initial pressure gauge reading when the filter is clean. (It will vary from
pool to pool depending upon the pump and general piping system.) As the filter
removes dirt and impurities from the pool water, the accumulation of dirt in the filter
will cause the pressure to rise and diminish the water flow. When the pressure gauge
reading is 50kpa, higher than the initial "clean" pressure you noted, it is time to
backwash the filter (see BACKWASH under filter and multiport valve functions).
NOTE: During 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.

REPLACEMENT PARTS OF FILTER SF500 & SF650
(Diagrams are for illustrative purposes and may vary slightly on actual filter)
Item
Part number
Description
1
MPVB4/MPVB5
Multiport Valve (see breakdown)
2
PGSL, or PGSC
S/Steel Oil filled Pressure gauge
(Mounting Centre or Lower)
3
SF001
SF002
Flange Clamp SF550/650
Hinge Clamp SF500/650
4
SF004
SF305
Screw with Nut SF500/650
Nut For Flange SF700/800
5
SF501
SF651
SF701
SF801
SF500 Tank
SF650 Tank
SF700 Tank
SF800 Tank
6
SF006
SF007
SF307
SF308
SF009
SF010
SF309
SF310
Lateral Assembly (SF500)
Lateral Assembly (SF650)
Lateral Assembly (SF700)
Lateral Assembly (SF800)
Centre Pipe (SF500)
Centre Pipe (SF650)
Centre Pipe (SF700)
Centre Pipe (SF800)
7
SF012
SF012
SF312
SF312
Lateral (SF500)
Lateral (SF650)
Lateral (SF700)
Lateral (SF800)
8
SF015
SF015
SF315
SF315
Filter Base (SF500)
Filter Base (SF650)
Filter Base (SF700)
Filter Base (SF800)

REPLACEMENT PARTS OF MULTIPORT VALVE SF500 & SF650
Item
Part no
Description
1
MPV001
Handle
2
MPV002
Pin handle
3
MPV003
Washer
4
MPV004
Screw
5
MPV005
Top mount
valve
6
MPV006
Cover valve
with O’ring
7
MPV007
O’ring cover
8
MPV008
Washer
9
MPV009
Spring
10
MPV010
O’ring diverter
11
MPV011
Diverter
12
MPV012
Spider gasket
13
MPV013
Body
14
MPV014
Nut
15
MPV015
Plug
16
MPV016
Sight glass
gasket
17
MPV017
Sight glass
18
MPV217
O’ring Tank
20
MPV020
O’ring Stem
Complete Praher Valve Complete suit
SF500/600

Suits SF700 and SF800
Complete multiport valve item
code: MPVB5
1
MPV001
Handle
2
MPV002
Pin Handle
3
MPV003
Washer for handle
4
MPV104
Bolt
5
MPV105
2" Top Mount Lid
6
MPV106
O’ring Lid
7
MPV107
Body Black
8
MPV108
Nut for Bolt
9
MPV109
Spigot Valve
10
MPV110
O’ring Stand pipe
11
MPV111
Diffuser
12
MPV112
Spider Gasket
13
MPV113
Rotor
14
MPV114
O’ring x 2
15
MPV115
Spring
16
MPV116
Washer Spring
17
MPV117
Sight Glass
18
MPV118
Gasket Sight Glass
19
MPV119
Union Complete
20
MPV120
Union O’ring
Complete Praher Multiport Valve
MPVB5 Suits SF 700 & 800

FUNCTIONS OF VALVE POSITIONS
(Diagrams are for illustrative purposes and may vary slightly on actual valve))
VALVE POSITION
FUNCTION
FILTER
Normal filtration and vacuuming
FILTER BACKWASH
Cleaning filter by reversing the flow
RINSE
Used after backwash to flush dirt from valve
WASTE
By passes filter, used for vacuuming to waste or lowering
water level
RECIRCULATE
By passes filter for circulating water to pool
CLOSED
Shuts off all flow to filter or pool
GENERAL
2. SERVICING VALVE (Stop pump, close gate valve in suction & discharge before
proceeding):
a. Set handle in filter position. b. Remove cover screws. c. Lift cover and key
assembly out.
TO ASSEMBLE:
1. Place valve key so that wedge opening is at TOP port (handle in filter position).
Flat edge of cover screw lug should align with flat edge of body screw lug.
2. Position cover O'ring.
3. Secure assembly to body with cover screws. Tighten cover screws evenly and
alternately. Do not over-tighten.

WARNING
THIS FILTER OPERATES UNDER HIGH PRESSURE. WHEN ANY PART
OF THE CIRCULATING SYSTEM (e.g. CLAMP, PUMP, FILTER, VALVES,
ETC.) IS SERVICED, AIR CAN ENTER THE SYSTEM AND BECOME
PRESSURISED. PRESSURISED AIR CAN CAUSE THE LID OR VALVE TO
BE BLOWN OFF WHICH CAN RESULT IN SEVERE INJURY, DEATH, OR
PROPERTY DAMAGE
TURN PUMP OFF BEFORE CHANGING VALVE POSITION.
TO PREVENT DAMAGE TO THE PUMP AND FOR PROPER OPERATION
OF THE SYSTEM, CLEAN PUMP STRAINER AND SKIMMER BASKETS
REGULARLY
DO NOT UNSCREW SCREWS OF FLANGE CLAMP WHILE PUMP IS
RUNNING.
WARRANTY:
The filter tank is warranted against manufacturer’s defects for a period of 10
years.
Internals (laterals and assembly, centre pipe) are warranted against
manufacturer’s defects for a period of 12 months.
The pressure gauge is warranted against manufacturer’s defects for a period
of 12 months.
The Praher multiport valve is warranted against manufacturer’s defects for a
period of 2 years.
is brought to you by POOL PRO PRODUCTS
Address 10-12 Cairns Street
Loganholme
Queensland 4129
Australia
Phone: [phone]
Fax: [phone]
Web: www.poolpro.com.au
03032015