How do you if an aquarium need "simply" a full reseal or it needs to be completely disassembled ( glass apart ) and re siliconed completely? I am buying a 220 gallon off craigslist which is roughly and hour away. The sellers have been upfront an

When it was leaking, about ½ a gallon per minute was coming out from an unidentified spot. Now I have a few questions because I want to attempt to reseal the tank. I know the basics about scraping, cleaning with acetone, and resealing from other forums.