lol…could be, but there’s not near enough of them!
Nope, Marcel, there’s never been a sprinkler system.
Mitch, they are sealed, so I don’t know what they’re filled with. They are about an inch thick, and there are about 10 in various places next to the foundation. I’m pretty sure they are to slow the water down so it has a chance to possibly seep to the clay tile footer drains (if there are any) before seeping through the block wall and into the basement.
BTW, they aren’t doing their job. Water is still coming through the block walls during heavy downpours. ](*,)