background image

4-4

1-4

Models: 

S700R(B) / S800

R

 / S900

R

EMFI16030757

FUNCTION

The filter uses special filter sand to remove dirt particles from pool water.  The filter sand is loaded into the filter tank 
functions as the permanent dirt removing media.When the control 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 control valve to the top of the filter tank.As the pool water is pumped through the filter, dirt particles are trapped by 
the sand bed, and filtered out. The cleaned Pool water is returned from the bottom of the filter tank, through the control 
valve and back to the pool through the piping system.  This entire sequence is continuous and automatic and 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 control 
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 sand, flushing the previously trapped dirt and debris out the waste line. Once the filter 
is back-washed of dirt, set control valve to RINSE position and run pump for about 1/2 to 1 minute, and then to filter, to 
resume normal filtering.

and 

NOTE: Turn pump off  before changing valve position.

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. Position the filter so that the piping 

connections, control valve are convenient and accessible for operation and service.

2) Loading the sand media.  Filter sand media is loaded through the top opening of the filter.
a) Place tow O'ring on the side of the filter tank and Connect control valve to the filter using pipes with unions and 

glues.(see the fig on page4).

b) Loosen the Ring lock Nut by 2 handles and remove the valve.
c) We recommend filling tank approximately 1/3 way with water to provide a cushion effect when the filter sand is 

poured in. This  helps protect the under-drain laterals from excessive shock.

d) Carefully pour in correct amount and grade of filter sand.   Sand surface should  be leveled and should come to about 

the middle of the filter tank.

INSTALLATION

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 PRESSURIZED . PRESSURIZED 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.

WARNING

!

!

TO PREVENT DAMAGE TO THE PUMP AND FOR PROPER OPERATION OF THE SYSTEM, 
CLEAN PUMP STRAINER AND SKIMMER BASKETS REGULARLY.

!

By-passes filter for circulating water to pool

Used after backwash to flush dirt from valve

Cleaning Filter by reversing the flow

By-passes filter, used for vacuuming to waste or lowering water level

CLOSED 

Shuts off all flow to filter or pool

RECIRCULATE

WASTE 

RINSE

BACKWASH 

FILTER 

Valve Position

Normal Filtration and Vacuuming

Function

DO NOT UNSCREW SCREWS OF FLANGE CLAMP WHILE PUMP IS RUNNING. 

!

FUNCTIONS OF VALVE POSITIONS

GENERAL

1) Pipe tap boss provided for optional influent pressure gauge.
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 psn.).  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.

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

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