I live in an old house (somewhere between 1870 and 1920) with a retrofit basement.
I also have a high water table, so during the spring rains, we get a trickle of water in the basement ( we've come to accept it as part of the personality of the house and just make sure nothing is on the floor.)
The floor is poured concrete, but whoever did it left high spots and low spots, and of course one of the high spots is between the biggest low spot and the drain.
So my question is:
Short of taking out the entire floor, is there something I can do to level out the low spots? Or can I cut/grind/chip a groove deep enough in the high spots to act as a channel?
Best Answer
Too long for a comment: I like to reduce high spots because I have found with moisture most self leveling compounds just don’t last , a 4” angle grinder is a handy home tool and can be used to cut a trench or with painstaking work grind it all down, inexpensive grinders start at ~30$ and pro versions can be close to 200 for a 4” , going up to a 9”angle grinder with a carbide surfacing blade/ bit will cost around 300 but can do a large amount in a short time this tool is used to cut the high spots down faster than masonry disks without dust. I use water so a GFCI protected receptacle or extension cord is a must with my setup if no water is used the blade or bit doesn’t last long this eliminates the need for a dust mask but a shop vac and a large rubber floor squeegee is helpful.