Transcript
Installation and Operation Instructions for No. 08655-0007 and 08655-0017 Check Valves. WARNING
This check valve is for use only with Swimquip brand U-3 surface skimmers in systems having an equalizer wall fitting and equalizer line running to the skimmer.
Hazardous Suction. Suction equalizer fittings can trap hair or body parts, causing severe injury or death.
Install check valve finger tight in equalizer port of skimmer (see Figure 1). Do not use pipe thread sealant; do not use a wrench or pliers when tightening.
Provide more than one suction source in pool circulation system at all times.
Check valve prevents suction through equalizer line unless the water level in the skimmer drops so far that the float valve closes. When float closes, check valve opens to allow pump to draw water from equalizer wall fitting, preventing damage to pool circulation pump. Inspect equalizer check valve regularly for disk wear or loose spring tension on the check valve disk. Valve does not need to be removed from skimmer for inspection. If there is suction through equalizer wall fitting while skimmer float valve is in the open (up) position, the check valve is leaking. Inspect valve for foreign objects lodged under disk. If nothing is stuck in the valve, replace valve. NOTICE: Spring tension on the check valve disk is factory set and not adjustable. If you suspect that the spring tension has changed, or if the check valve has been disassembled, do not try to fix or reuse it; replace it.
To Pump Suction Equalizer Line
Consult U-3 Skimmer Installation and Operating Information instructions (Publication No. 39501-0028) for specific information about skimmer equalizer system installation and maintenance.
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Figure 1: Check valve installation. Tighten finger-tight only.
Pool Vacuum Hose
Vacuum Plate Float Valve Open
Flow Through Skimmer Check Valve Shut
Float Valve Shut
No Flow Over Weir
Check Valve Open
To Pump Suction
From Equalizer Outlet
Equalizer Line 1023 0694 0 -0 0 1 0
G
55
0 -0 0 1 0
0801 ITE
A-R I
LISTED SUCTI
ST
A-R I
G
M
LISTED SUCTI
O N F I T T I NG
LISTED SUCTI
ST
55
P
ITE
1021 0694
G
ITE
M
A-R I
Equalizer Line
M
P
ST
To Pump Suction
1022 0694 0801
55
Remove Check Valve; Plug Equalizer (or Main Drain) Port
P
0801
0 -0 0 1 0
To Pump Suction
O N F I T T I NG
O N F I T T I NG
Figure 2: Normal skimmer operation; check valve shut, water flows through skimmer.
Figure 3: Equalizer operation: Float valve shut, check valve open, water flows through equalizer line to avoid starving the pump.
Figure 4: To vacuum pool, remove check valve and plug port; reinstall check valve after vacuuming.
Sta-Rite Pool/Spa Group 293 Wright Street, Delavan, WI 53115 International: 262-728-5551, FAX: 262-728-7550 www.starite.com Union City, TN • Delavan, WI • Mississauga, ON • Murrieta, CA
© 2005, Sta-Rite Industries
WC80-144 (Rev. 8/9/05)
