The home we moved in to has a sump pump with a radon mitigation system. The radon installer tied the pipe to the sump pit and sealed the lid shut. The house is about 20 years old and I'm afraid the sump pump system is the original unit that was installed. I have no way of routinely checking the sump pump to ensure the motor works without breaking the vacuum seal. I'm curious if anyone else has a similar setup and can recommend a particular sump cover for quick access to test the sump and easily restoring the vacuum seal. Thanks!