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A sump pump assembly having a primary sump pump and a secondary sump pump and including a T-fitting for connecting together the outlets of the primary sump pump and the secondary sump pump to a common exhaust. The T-fitting contains a one-way valve on the secondary pump outlet connection and a faste

A sump pump assembly having a primary sump pump and a secondary sump pump and including a T-fitting for connecting together the outlets of the primary sump pump and the secondary sump pump to a common exhaust. The T-fitting contains a one-way valve on the secondary pump outlet connection and a fastening means for a water level sensing device.

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In a sump system having a primary and a secondary backup pump, an apparatus comprising: a T-fitting fluidly connecting the primary pump and secondary pump outlets to a common exhaust, said T-fitting having cylindrically shaped connecting ends, said secondary pump cylindrically shaped connecting end

In a sump system having a primary and a secondary backup pump, an apparatus comprising: a T-fitting fluidly connecting the primary pump and secondary pump outlets to a common exhaust, said T-fitting having cylindrically shaped connecting ends, said secondary pump cylindrically shaped connecting end substantially horizontally disposed, a fastening means on the exterior surface of said T-fitting for fastening thereon a water level sensor means for electrically sensing the water level to in turn energize the secondary pump and a one-way valve within said secondary pump cylindrically shaped connecting end. In a sump system having a primary and a secondary backup pump, an article comprising: a T-fitting having a primary pump connecting end and a secondary pump connecting end, said T-fitting fluidly connecting the primary pump and the secondary pump outlets to a common exhaust, a one-way valve positioned within said T-fitting in the secondary pump connecting end so as to be substantially horizontally disposed and a slot on said secondary pump connecting end starting at the outermost radial periphery and extending axially towards said T-fitting, whereby said slot makes the outermost periphery of said secondary pump connecting end radially flexible.