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SKIMMER LAYOUT and SUCTION LINE SIZING I STA•R I TE U -3 SKIMMER
<br /> NOTICE: Installation must comply with all applicable codes,
<br /> including NSF Standard 50 (if required). Equalizer lines may be o INSTALLATION, OPERATION & PARTS
<br /> required on public pool or commecrical pool installations. I --———— o .
<br /> I I I p
<br /> 1. Use one skimmer per 500 square feet of pool surface area, l i I Save these instructions. Carefully read and follow all safety instructions in this manual. -
<br /> Suction line sizes are based on a water velocity of less than .
<br /> seven feet per second.Since building codes vary,check your _ _; Pool water level: Keep pool water level at least 1-1/2 to 2"above
<br /> local building code before installing pool and skimmers. 18" 1- - 18 A 1NARNtNG Hazardous Suction, bottom of skimmer opening for proper operation.
<br /> -" Risk of hair or body 2. Suction line sizes for each section of piping must allow for �_;_f o -. Ref y Float Valve: Float valve protects pump from loss of prime if
<br /> the total number of skimmers feeding that section of the line. I 1, entrapment, drowning or skimmer clogs or flow through skimmer is restricted. Trimmer
<br /> Suction line sizing in Chart I allows for this. i disembowelment. valve plate on bottom of float valve balances flow between
<br /> l Wall fitting on equalizer line
<br /> 3. See Figures 5 and 7 Pages 2 and 3, for piping layout. See ♦ skimmer and main drain.
<br /> g � g P P g Y � must be non-entrapping of
<br /> Chart I, Page 3, for suction pipe sizing. ; rI hair or body at flow rates up Flow adjustment: Balance flow between skimmer and main
<br /> 4. For good hydraulic balance, divide skimmers as equally as d I to 55 GPM. drain.
<br /> possible between the main branches of the piping layout. 1"Vertical Plan View I A.Skimmers without float:Adjust shut-off valves in pump suc-
<br /> 5. For long pipe runs (in which friction can reduce flow and adjustment A CAUTION tion line from skimmer and pool main drain line. (See
<br /> Blocking pump suction can cause pressure Figure 1, below.)
<br /> pressure), refer to your friction/flow chart for proper pipe of frame to 27" surges and water hammer, which can damage um orpipingg
<br /> sizes. accommodate 11'/4 Ref $ 8 pump B. Skimmers with float: If skimmer is equipped with float
<br /> misalignment. 71/1 and may cause flooding. valve, adjust trimmer plate on bottom of float. To reach
<br /> 6. When planning location of skimmers on one-and two-skim- 1" trimmer plate, remove cover, basket, and float valve (See
<br /> mer outdoor pools, locate skimmers so that the prevailing OPERATION Figure 2, below). Swing trimmer plate to one side to
<br /> wind blows into the skimmers. 44'% increase trimmer port size(more flow through skimmer, less
<br /> INSTALLATION All Models: flow through main drain); reduce port size for less flow
<br /> To Pump through skimmer and more flow through main drain.
<br /> Concrete: See Figure 7 for basic dimensions. Top cover frame Suction Pump suction pulls water through skimmer. Water flow intoskimmer carries floatin leaves, bus etc., into skimmer where Sweeping pool: For installation without equalizer line, hold
<br /> has 1" vertical height adjustment, g bugs,
<br /> they are trapped in skimmer basket. (Dust, body oils,etc.,go on
<br /> NOTICE: Skimmer MUST be surrounded by at least 4" of pool weir up to starve skimmer of water and close float valve. This
<br /> directs all flow through main drain. To return to normal skim-
<br /> structure concrete in a monolithic our, usingcold joint as through to be removed by pool filter.) Floating weir in skimmer
<br /> P � a co1 opening enhances surface flow and skimming action. Model ming operation, turn pump off 10-15 seconds, allowing skim-
<br /> shown in installation drawings. 26" I v mer to fill and float valve to return to open position. Skimmer
<br /> 1404 and 2404 are NSF listed..
<br /> Line Connections and Testing: Connect pump inlet line to rear Series 1403,i will now operate normally as long as pool water level is high
<br /> port in bottom manifold(Figure 7).Skimmer is ABS plastic;man- - enough to allow normal flow over weir.
<br /> ifold connections are 1-1/2 or 2" threaded or 1-1/2" slip. For
<br /> threaded connections, do not use pipe dope; la seal joint use - - - - Typical Public Pool Skimmer Installation with Equalizer Line Installed
<br /> RTV Silastic#732* (preferred),teflon tape, or Plasto-Joint Stik**. ° P� e Yp �
<br /> For slip connections, apply PVC primer to PVC pipe only. Then � �"
<br /> apply ABS to PVC solvent cement to both pipe and slip connec- Alternate / Equalizer F Pool Vacuum
<br /> 4° ` Hose
<br /> tions. Consult dealer for correct solvent cement for pipe used. Line from Via:l; t2l:
<br /> Section View
<br /> Main Drain.
<br /> Assemble Dint per cement manufacturers instructions.Allow at
<br /> j P
<br /> least 3 hours before pressure testing. .: rA:.M
<br /> < »:. ...a a [ .i,"tl•" " 3 °iiEE �`'•-ae. .:.''^•.,,, a NdCp Um
<br /> AWARNING
<br /> Plastic cements and primers can he flammable, ri ;;;: °° � �" °r:", ".i s�; r'.� °..°:�°.a�P"•Plate
<br /> � .: ;�" .. {;� w,�n ill ilia;•a! _:::?, '`:, " "�.....°.,°i.;;
<br /> Poisonous or both. Closelyfollow cement manufacturer's — :• E�:< m :; iii 3�
<br /> anuurers � Float )"�e',."I gg - 6-a? `,"..< hp- •®�e.F:i.
<br /> Float
<br /> instructions when using plastic cement. Valve �9, ,i°
<br /> ° �I;, n
<br /> Flow Open Valve
<br /> Through No Flow Shut
<br /> In residential installations where equalizers are not required Over check -
<br /> q q Skimmer .
<br /> �e weir Valve
<br /> and where the main drain line does not connect to the skimmer `----� open �s. " Removeel,eck�' -
<br /> �__.•
<br /> e ualizer ort, low water levels in the Dol or clo ed skimmer Check To Pum Valve;Flu ,.<
<br /> q P P gg —r P To Pump la 1
<br /> 111 :=-e
<br /> Valve ° Equalizer(or
<br /> Suction Suction To Pum
<br /> baskets may damage the pump due to loss of prime (if skimmer „ li shut From ):: s Main Drain) §3' e 3 Suction
<br /> p
<br /> - -_-_ : Equalizer Port
<br /> sucks air)or cavitation (if skimmer clogs).Air pulled in by skim- kt;>i�t s9ee;
<br /> II II 1� li Equalizer outlet
<br /> Line bm "� ,;..,i» Equalizer
<br /> marts?can be trapped in filter tanks,which may be a safety hoz- Use 8011-Series anti-entra in "` t�
<br /> PP g .' ,�- - ."° ;;i,�.:
<br /> ard. 1f skimmer regularly vortexes or sucks air, raise pool water - -: `�ns`s Sg;° •1 r•'' 10224594 •-'•" 4° 'J-
<br /> g y p 55 GPM equalizer fitting with �� - - � °`_°
<br /> f =:g S B:• - 10210594
<br /> level or contact your pool service representative for advice. 8010 Series Cover or use 8012
<br /> Series Cover on 8429 Wall Fitting.
<br /> Cover must fit tight to fitting to ( Figure 1: Normal operation: float Figure 2: Equalizer operation; float Figure 3: Vacuuming pool; float and
<br /> Dow Corning prevent entrapment.
<br /> -Lake Chemical Co.,Chicago,IL —— I� — I� valve open, check valve shut. valve shut,.check valve open. check valves removed, equalizer (check
<br /> valve) port plugged.
<br /> Front View Sta-Rite Pool/Spa Group
<br /> 293 Wright Street, Delavan, WI 53115
<br /> Figure 8- U-3 Skimmer Installation North America:800-752-0183,FAX 800-582-2217
<br /> International:414-728-5551,FAX:414-728-4461,TELEX:ITT 4970245
<br /> Drawings and Specifications Oxnard,CA-Union City,TN-Delavan,WI-Mississauga,opt.
<br /> 01997,Sta-Rite Industries,Inc. Printed in U.S.A. 39501-0028(Rev.11112/97)
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