Black water holding tank leak
Help! We tried to repair a crack in our black water holding tank (about 1.5 inches long) with Eternabond. We still see a little moisture with a very slow leak coming from the edge. Could we put another piece right up against the previous patch or should we overlap it? Also, the gray water tank has a crack too, but we aren't having the same success with that one. We are looking for a fiberglas patch kit. Anyone know about this type of product?
Thanks for any help you can give.