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Oil interceptors connected to an underground oil storage tank will automatically
discharge separated oil. As a skim of oil accumulates on top of the static water line,
it will feed through the draw-off sleeve to the storage tank. The storage tank should
be serviced periodically, depending upon the tank capacity and volume of sepa-
rated oil. Accumulated oil should be removed as needed and recycled in a manner
suitable to local authorities.
For manually serviced interceptors, open the valve, and drain the accumulated oil
into an appropriate receptacle. Recycle the recovered oil in a manner suitable to
local authorities.
Note:
Oil interceptors installed with a manual draw-off should be serviced regularly;
significant volumes of oil should not be allowed to accumulate inside the inter-
ceptor.
To inspect the interceptor, remove the bolt(s) securing the top cover and remove the
cover. Evacuate the interceptor completely and remove any debris that may have
accumulated at the bottom of the interceptor. Make sure the inlet, outlet and draw-
off are free of obstructions, and check the vertical position of the draw-off sleeve
relative to the static water line. Prior to replacing the cover, inspect the cover gasket
for damage or potential leak points.
Integral Storage Tank Interceptors - OI-ST,
OI-700 Series
Secondary Storage Tank Interceptors -
OI-500, OI-600, WO-500
Function
Watts OI-ST, OI-500, OI-600, OI-700, and WO-500 Series hydro-mechanical oil
interceptors are designed for installation in vehicle service and run-off areas. The
separated oil is automatically drawn off to an accompanying storage tank.
Note:
Check with local authorities for code compliance prior to installing oil intercep-
tors with integral or secondary storage tanks.
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