Is this common? We are about to make an offer on a house but are concerned with the sump pump not having drain tile going into it. The homeowners say they haven’t had water problems in the 6 years they’ve owned it. 1 bedroom in the basement has been raised about an inch with wood and they had a dehumidifier running. The floor seems pretty flat but was told there was some yellow staining and the concert might be being eaten away.
You can sort of see the holes drilled into the sump pit liner https://imgur.com/a/RjKVOyr