Working on a small cottage by the Delaware Bay. Last year I had to repair the plumbing in the two bathrooms because the solder joints pulled apart. This year some pipes fell out under the house because the joints pulled apart. As I was making measurements for repair, a joint on the main line in came apart. Joints are a dull powdery grey in color. Mostly original plumbing done in the 60's. Should the house be re-plumbed? Will I be chasing leaks on a regular basis?
Thanks.