Leak proofing conrete utility room

Hello--
My utility room, on the lower level, has two water heaters and a water pressure tank. The slab on one side of the room slopes slightly AWAY from the sump drain. I don't want to take out the appliances to correct the slab, but would prefer to simply create a two- or three-inch perimeter "lip" which would create a small pool and compensate for the incorrect slope. BTW, the basement is finished, so this lip idea would also protect the adjoining rooms from run-off. Any suggestions on a product? Something by Kwikrete, perhaps? Thanks!

Might be easier to raise the appliances and put them in drain pans. Those pans cld be plumbed easily to the sump.