U3 Skimmer 1.5 in. Spring Check Valve made by Pentair 08655-0007

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.

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.

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 toswimming 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.

Consult U-3 Skimmer Installation and Operating Information instructions (Publication No. 39501-0028) for specific information about skimmer equalizer system installation and maintenance.

Installation and Operation Instructions for No. 08655-0007 and 08655-0017 Check Valves.