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Admiral

 S-20 Automatic Skimmer Installation Guide

If you have any questions about installation or maintenance of this drain cover, please contact your pool professional.
Never attempt to alter or repair the cover or frame on your own.

IMPORTANT NOTICE

Regularly inspect all drain covers for cracks, damage and advanced weathering.  If a drain cover becomes loose,
cracked, damaged, broken or is missing, close the pool or spa immediately, post a notice and keep the pool or spa
closed until an appropriate VGB 2008 certified drain cover is properly installed.  Drain covers deteriorate over time due
to exposure to sunlight and pool chemicals.  This drain cover must be replaced within seven (7) years from installation
(or earlier if the cover becomes damaged in any way).

An ANSI/ASME A112.19.8a approved anti-entrapment drain cover must be used for each drain. Pools and
spas should utilize two drains per pump.  If a drain cover becomes loose, broken or is missing, close

the pool or spa immediately and shut off the pump until an approved anti-entrapment drain cover is properly installed
with the supplied stainless steel screws. Only the supplied 316 stainless-steel screws should be used with the drain
cover. Substitute screws such as masonry screws, sheet rock screws or other types of screws should never be used.
Screws put into the frame anywhere except in the original screw holes will not hold and will allow the drain cover to
come off the main drain, causing an entrapment hazard, including possible limb and body entrapment or evisceration/
disembowelment. If the screw holes of the frame are stripped or the brass inserts are missing, loose, or damaged,
replace the frame.  DO NOT DRILL NEW SCREW HOLES IN THE FRAME AS THIS WILL DAMAGE AND WEAKEN THE
FRAME.

IMPORTANT NOTICE

Attention Installer: 

This manual contains important information about the installation, operation and safe use of this product. This

information should be given to the owner and/or operator of this equipment.

Before installing this product, read and follow all warning notices and instructions which are included. Failure to
follow safety warnings and instructions can result in severe injury, death or property damage.

Call (800) 831-7133 for additional free copies of these instructions.  It is absolutely critical that the suction plumbing be installed
in accordance with the latest national and local codes for swimming pools.

A pool/spa pump produces high levels of suction, which can pose extreme danger if a person comes in close
proximity to an open pool or spa drain or a loose or broken drain cover or grate.

IMPORTANT WARNINGS AND SAFETY INSTRUCTIONS

For more information about the Virginia Graeme Baker Pool and Spa Safety Act, contact the
Consumer Product Safety Commission at (301) 504-7908 or visit www.cpsc.gov.

NOTE: Always turn off all power to the pool pump before installing the cover or working on
any suction outlet.

Summary of Contents for ADMIRAL S-20

Page 1: ...IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS INSTALLATION GUIDE ADMIRAL S 20 AUTOMATIC SKIMMER ...

Page 2: ...S i Operation 1 Vacuuming Pool 2 Public Pool Models 2 Maintenance 2 Removing the Skimmer Lid 3 Parts List 3 Multi Skimmer Installation and Pipe Sizing 4 Skimmer Layout and Line Sizing 5 Installation 5 Technical Support Time 8 A M to 7 30 ET Phone 800 831 7133 Fax 800 284 4151 Web sites http www pentairpool com and staritepool com ...

Page 3: ...RE TO FOLLOW THESE INSTRUCTIONS AND OR USE WITH COMPONENTS NOT PROVIDED BY PENTAIR POOL PRODUCTS AND INTENDED TO BE USED WITH THIS PRODUCT MAY RESULT IN IMPROPER POSITIONING OR FUNCTIONING OF DRAIN COVER AND MAY CAUSE SEVERE PERSONAL INJURY OR DEATH FOR USEWITH MULTIPLE SUBMERGED SUCTION OUTLETS OR A SINGLE SUBMERGED SUCTION OUTLET IF ONLY A SINGLE SUCTION OUTLET OR MAIN DRAIN EXISTS A SAFETY VACU...

Page 4: ...xcept in the original screw holes will not hold and will allow the drain cover to come off the main drain causing an entrapment hazard including possible limb and body entrapment or evisceration disembowelment If the screw holes of the frame are stripped or the brass inserts are missing loose or damaged replace the frame DO NOT DRILL NEW SCREW HOLES INTHE FRAME ASTHISWILL DAMAGE ANDWEAKENTHE FRAME...

Page 5: ...fill and float valve to return to open position Skimmer will now operate normally as long as pool water level is high enough to allow normal flow over weir Operation Flow Through Skimmer To Pump Suction Float Valve Open Check Valve Shut Equalizer Line 1023 0694 55 G P M L I S T E D S U C T I O N F I T T I N G S T A R I T E 0 8 0 1 0 0010 55 G P M L I S T E D S U C T I O N F I T T I N G S T A R I T...

Page 6: ...qualizer NOTICE The equalizer is an emergency bypass intended to prevent damage to the pump when pool water level is low or skimmer basket is blocked Do not allow flow through equalizer for extended time periods Equalizer If flow over weir is restricted Float valve closes diverting pump suction to equalizer or main drain line and preventing loss of prime in pump Seal normally remains until pump st...

Page 7: ...r 10 hole pattern 20 81111800Gasket set Lg 10 hole pattern w dbl wall 81111700Gasket set Lg 10 hole pattern w o dbl wall 21 85015200Equalizer assembly NOT SHOWN 98202900Screw sealing 98207200Screw sealing 98203000Screw 85008400Screw kit XLG WM 85008500Screw kit 10 hole pattern 85008600Screw kit 10 hole pattern extra long 85008700Screw kit standard 12 hole pattern 85008800Screw kit standard 12 hole...

Page 8: ...ith pipe sizing Note multiple main drains Table 1 Suction Pipe Sizing by Surface Area of Pool and Rated flow Capacity of Skimmers Multi Skimmer Installation and Pipe Sizing Pool No of Surface Area Skimmers Skimmer Rated Flow GPM In Square Ft Req 30 35 40 45 50 60 Up to 600 1 2 2 2 2 2 1 000 2 2 2 2 2 2 1 500 3 2 3 3 3 4 2 000 4 3 4 4 4 4 2 500 5 4 4 4 4 4 3 000 6 4 4 4 4 5 3 500 7 4 4 5 5 5 4 000 ...

Page 9: ...ic pour using a cold joint as shown in installation drawings Line Connections and Testing Connect pump inlet line to rear port in bottom manifold Figure 8 Skimmer is ABS plastic manifold connections are 1 1 2 or 2 threaded or 1 1 2 slip For threaded connections do not use pipe dope to seal joint use RTV Silastic 732 preferred Teflon tape or Plasto Joint Stik For slip connections apply PVC primer t...

Page 10: ...used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Water Pool and Spa Inc Those names and brands may be the trademarks or registered trademarks of those third parties Because we are continuously improving our products and services Pentair reserves the right to change specifications without prior notice Pentair is an...

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