Hello; I think that I will revise my tank sealing proceedure to say in the future that waiting more than two days for silicone to cure in a good idea. I have gotten away with two days before , but also have had to reseal a reseal sometimes. Some reseals have cured for several days before water testing when I was busy and it did not hurt a thing.Might as well reseal the whole tank while you're at it. Wait 7 days before filling up, that's the average cure time for silicone. Let us know what happens. Good luck.