Just outside 12 yr. warranty one panel has sprung a couple of leaks. used repair kit available. Am wondering how feasible diy replacement would be cost wise. Maybe it would just be best to keep repairing with the plugs. Prices have seemed to be outside the affordable range. Can't seem to get a response from Heliocol. Guess its a dealer oriented network designed to exclude the DIY guys like myself. Anyone aware of a source for replacement panels? thanx in advance for those who respond.