Filter Operation And Cleaning; Section Ii. Filter Operation And Cleaning - Pentair Meteor 20 Owner's Manual

SECTION II.

FILTER OPERATION AND CLEANING.

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 CONTROL VALVE TO BLOW OFF WHICH CAN RESULT IN SEVERE INJURY, DEATH, OR PROPERTY
DAMAGE. TO AVOID THIS POTENTIAL HAZARD, FOLLOW THESE INSTRUCTIONS.
1. BEFORE REPOSITIONING VALVES AND BEFORE BEGINNING THE ASSEMBLY, DISASSEMBLY, OR ADJUSTMENT OF
THE CLAMP OR ANY OTHER SERVICE OF THE CIRCULATING SYSTEM: (A) TURN THE PUMP OFF AND SHUT OFF
ANY AUTOMATIC CONTROLS TO ENSURE THE SYSTEM IS NOT INADVERTENTLY STARTED DURING THE
SERVICING; (B) OPEN HIGH FLOW™ MANUAL AIR RELIEF VALVE; (C) WAIT UNTIL ALL PRESSURE IS RELIEVED,
PRESSURE GAUGE MUST READ ZERO (0).
2. WHENEVER INSTALLING THE FILTER CLAMP, FOLLOW THE FILTER LID AND CLAMP INSTALLATION
INSTRUCTIONS EXACTLY.
3. ONCE SERVICE ON THE CIRCULATING SYSTEM IS COMPLETE, FOLLOW SYSTEM RESTART INSTRUCTIONS
EXACTLY.
4. MAINTAIN CIRCULATION SYSTEM PROPERLY. REPLACE WORN OR DAMAGED PARTS IMMEDIATELY (E.G.,
CLAMP, PRESSURE GAUGE, RELIEF VALVE, O-RINGS, ETC.).
5. BE SURE THAT THE FILTER IS PROPERLY MOUNTED AND POSITIONED ACCORDING TO INSTRUCTIONS
PROVIDED.
A. GENERAL INFORMATION - HOW YOUR FILTER WORKS.
1. Your high rate sand filter is designed to produce clear, sparkling water and operate for years with a minimum of maintenance
when installed, operated and maintained in accordance with these instructions:
Your filter uses special filter sand to remove dirt particles from the water. Dirt is collected in the filter by the sand bed as
water flows through the filter. Water enters the filter through the valve on top of the filter. It is then distributed evenly
downward, across and through the sand bed. The dirt is removed by the sand and the clean water flows through the piping
(laterals) at the bottom of the filter up through the center pipe back to the valve on top of the filter, where the clean water is
returned to the pool through the piping.
After a period of time, dirt will accumulate in the filter causing a resistance to the flow of water through the filter. This
resistance results in a diminished flow rate and a rise in the pressure of the filter. Eventually the filter sand will have removed
so much dirt and the filter pressure risen to such a point that it will be necessary to clean (backwash) your filter.
By setting the control valve on the top of the filter to the backwash position, the flow direction of water is reversed through
the filter so that the water is directed to the bottom of the filter and up through the sand bed flushing the dirt and debris out
through the waste line. Once the backwash procedure is complete, the valve must be returned to its filter position to resume
normal filtration.
The filter's function is to remove suspended matter from the water and does not sanitize the water. For sparkling clear water
the water must be sanitized as well as chemically balanced. Pool chemistry is a specialized area and you should consult your
local pool service specialist for specific details. In general, proper pool sanitation requires a free chlorine level of 1 to 2 PPM
and a pH range of 7.2 to 7.6.
Failure to operate your filter system or inadequate filtration can cause poor water clarity obstructing visibility in your pool. POOR
WATER CLARITY MAY OBSCURE OBJECTS IN THE WATER WHICH MAY EXPOSE SWIMMERS OR DIVERS TO THE RISK
OF SEVERE INJURY OR DEATH. NEVER SWIM IN A POOL WITH POOR WATER CLARITY.
2. This filter operates under pressure. When clamped properly and operated without air in the water system, this filter will
operate in a safe manner.
3. The pressure gauge is the primary indicator of how the filter is operating. Maintain your pressure gauge in good working order.
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