emaux S700B Manual Download Page 1

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Models: 

S700(B) / S800 / S900

EMFI16030754

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

INSTALLATION

Only simple tools (screwdriver and wrenches), 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. 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) Connect control valve to the filter using pipes with unions 
b) Loosen the twelve nuts and washers and remove the filter coping.
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.

and glues.(see the  fig on page4).

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

FUNCTIONS OF VALVE POSITIONS

THIS FILTER OPERATES   UNDER HIGH PRESSURE.  WHEN ANY PART OF THE CIRCULATING 
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.
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. 

SYSTEM (e.g., CLAMP, 

WARNING

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.

FUNCTION

The filter uses special filter sand to remove dirt particles from pool water.   The filter sand is loaded into the 
filter  tank  and  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.  
Thismeans 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, 
flushingthe previously trapped dirt and debris out the waste line. Once the filter is back-washed of dirt, set 
control valve toRINSE position and run pump for about 1/2 to 1 minute, and then to filter, to resume normal 
filtering.

NOTE: Turn pump off  before changing valve position.

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