Installation
3
INSTALLATION
NOTICE: Install pump on a hard, level surface (cement, asphalt, etc.). Never place
pump directly on earth, clay or gravel surfaces.
Piping – Sewage Applications (51 mm/2" or Less Solids)
In any case, piping must not be smaller than pump discharge.
When installed in a sewage system, pipe must be capable of handling semi-solids of
at least 51 mm (2”) diameter.
The rate of flow in the discharge pipe must keep any solids present in suspension in
the fluid. To meet minimum flow requirements [61 cm (2 feet)] per second in dis-
charge line), size pipe as follows:
A Pipe Size Of:
Will Handle a Flow Rate Of:
38 mm (1-1/2”)
45 LPM (12 GPM)
51 mm (2”)
79 LPM (21 GPM)
63 mm (2-1/2”)
113 LPM (30 GPM)
76 mm (3”)
181 LPM (48 GPM)
Use a 51 mm (2”) swing check valve in pump discharge to prevent backflow of liquid
into sump basin. Check valve should be a free flow valve that will easily pass solids.
NOTICE: For best performance of check valve when handling solids, do not install it
with discharge angled more than 45° above the horizontal. Do not install check valve
in a vertical position as solids may settle in valve and prevent opening on startup.
Drill a 5 mm (3/16”) hole in discharge pipe about 25-51 mm (1"-2”) above pump dis-
charge connection (but below check valve) to prevent airlocking the pump.
