INTEGRITY BEFORE PROFIT: Their slogan says it all. Earlier in 2005/2006, another plumbing company had worked on this and left me a very dissatisfied customer. Upon my pointing out that the pump was not running the way it should, they (i.e. the "other" plumbers) claimed to know better and said "that is how it is supposed to run". I was informally referred to Valley Plumbing by the City of Pleasanton for whom they do work. When they showed up, I found the supervisor (Daryn?) to be patient and methodical. And utterly honest. They charged me for fewer hours than actually spent (need I say, without my asking!) when they realized that they had initially misdiagnosed the problem. The pump system is complex and needs several adjustments before it stabilizes. Valley Plumbing has been kind enough to make extra visits (need I say, at no charge!) to make the necessary adjustments. This is one plumbing company that takes customer satisfaction seriously. Kudos to them. May their tribe increase!