I may have been lucky but ..... I had a 90 gal sitting in my garage for 3 years empty ... I thought I would have to have it redone ... but when I filled it, it was fine not a single leak ...
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Starting fresh ... 90 gal, 40gal sump, sundial T5HO x 4, 2 x koralia 2's, ASM G1X skimmer 
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