The drip is from my pressure relief valve. I replaced it today (new and old one rated as 150 psi) and the new one drips also. Possible related facts: My house water pressure is 60psi. Also, when I moved in 4 years ago, I had problems with hot water coming out of some of the cold water faucets (those close to the heater) so I installed a device (name escapes me) that prevents hot water from back flowing into the cold water inlet. This fixed that problem.
What do i do? Can I try a slighly higer rated pressure relief valve or is that dangerous? What other options do I have?