There are nine of us using a shared well on our street. Every spring we seem to have need of an expensive repair when the thaw comes and the water main breaks. This years' break is a disaster: non-member's driveway destroyed, 3 days to locate parts, etc., etc. The mains are 3-inch ductile and I don't know their age. I've been on the internet looking at coatings. Is there anything out there that will help us reduce the number of repairs? Coating or otherwise? ANY info will be appreciated!!!