Our basement bathroom has a water ejector/sump pump, as seen here : Basement sump setup
I've heard it running every hour today and last night, yet no one has used it. We had a heavy rain on Monday but no water since. I went downstairs today to open the lid by removing the bolts and they snapped(heavily rusted). 2 questions:
Why does it keep running every hour and how would I test it?
Can I remove the old bolts and just use silicone bathroom caulking to reseal it? In the pictures in the link, I believe we have plumbers putty in place and it's cracked in a portion so the PVC pipe shakes and I imagine it isn't sealed. https://imgur.com/a/oUtSQba