Retrofitting a Sump Pump in an Older Toronto Home
We live in a 1950s bungalow near North York that has never had an active drainage pit, but after recent spring downpours, groundwater started seeping through the floor slab joints. We are looking to install a proper sump pump to relieve hydrostatic pressure beneath the basement floor. What is involved in retrofitting a new pit into an existing concrete floor, and how noisy or disruptive is the pump operation during heavy storms?
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Retrofitting a sump pit involves cutting out a section of your concrete slab, excavating the soil underneath to the level of your weeping tiles, and setting a heavy-duty plastic basin in a gravel base. Modern submersible pumps sit fully underwater inside the pit, making them surprisingly quiet compared to older pedestal models. You can read about local installation procedures, pump capacities, and pit sizing at https://leaquida.ca/sump-pump-installation-toronto/ Make sure you also request a check valve on the discharge line to prevent water from flowing back into the basin after the motor shuts off.