Hand moldable epoxy putty in a convenient "one-stick" format hardens above or below water to an "off-white" color. Agressive adhesiveness, and fast 5 minute cure time.
Repair cracks in skimmers, main drains, and fittings
Fill cracks in plaster, concrete, fiberglass, or PVC
Pack around light cable to repair leaking light conduit (permanent)
Create a cast around pipe to hold Butyl Tape in place for plumbing leaks