Put a weatherstripped cover over the sump to keep any radon from there confined.
From the dailyherald.com
Officials say they've found 2.7 million picocuries per liter in the sump sample.
From the dailyherald.com
Could one of these things back up my sump pump and refrigerator in an emergency?
From the ocregister.com
I recently identified a nonworking sump pump, which prevented flooding problems.
From the sacbee.com
The sump pump is in a hole beneath a utility sink that's covered by a wooden lid.
From the dailyherald.com
I have a sump pump which was working fine until the power went off for six hours.
From the dailyherald.com
We have a high water table where we live, so we have a sump pump in our cellar.
From the timesunion.com
A toughened sump guard aims to prevent you from doing your own mini Exxon Valdez.
From the newarkadvertiser.co.uk
Sometimes there has to be a more drastic fix, in addition to the sump and pump.
From the boston.com
More examples
An oil reservoir in an internal combustion engine
A well or other hole in which water has collected
Cesspool: a covered cistern; waste water and sewage flow into it
A sump is a low space that collects any often-undesirable liquids such as water or chemicals. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers.
A sump is a term used in caving to describe a submerged passage in a cave.
A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink; The lowest part of a mine shaft into which water drains; A completely flooded cave passage, sometimes passable by diving; The crankcase or oil reservoir of an internal combustion engine; The pit at the lowest point ...
Pit or large plastic bucket/barrel inside the home designed to collect ground water from a perimeter drain system.
A pit in the basement in which water collects to be pumped out with a sump pump.
A pit or tank that catches liquid runoff for drainage or disposal.