why would you have to reseal a tank?
- Thread starter JOMA
- Start date
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JustOneMore20
Algae Fighter
Usually the tank being dry for awhile causes parts of the silicone to fail which causes leaks. Especially if its an older tank. That is when you want to reseal it. And silicone won't bond with itself so you have to replace it the whole panel usually...some people just redo all the silicone.
Whenever you buy a used tank if it hasn't been setup or held water for over a year, its good to leak test it outside in case the silicone is bad in some spots.
Most of the time new tanks are water tight, but it doesn't hurt to check them too.
Whenever you buy a used tank if it hasn't been setup or held water for over a year, its good to leak test it outside in case the silicone is bad in some spots.
Most of the time new tanks are water tight, but it doesn't hurt to check them too.
BillD
Aquarium Advice Addict
Silicone does not "dry out" over time. It was designed to be used as an all weather caulk and as such it's life expectancy outside is 35 years or more. I have had tanks sit in an unheated garage for 10 years and hold water just fine for another ten years. If the edges of the fillet seal are starting to lift or anything is visible underneath it, a reseal is in order. The tank does not necessarily have to be leaking. A properly built tank will hold water without the inner fillet seal. It is basically insurance.
