When Rick came he showed me where the leak was and said it could be repaired by replacing the lines. When Dirk came to talk about a new unit I truly felt pressured to get a new unit right then. On Social Security you don't have $6500. laying around. I told him a number of times I needed to think about it before he finally left. He called back a few days later and I told him I was going to get other estimates and his voice changed. He made it sound like my unit would go out any day. When I told him Rick said the line could be replaced for about $400. and I would like to know the exact cost. He said he didn't see any mention of it and he would check with Rick. Dirk never called me back.