mcoley wrote:
I guess this will remain a mystery until we take the TT out again. I checked the WH bypass valves and they were in bypass position. Since I winterized by blowing out the lines and removing the WH drain I don't know why I would have placed the valves in that position. I'm hopeful that was the problem. I plan to buy a cleaing wand anyhow. Seems like a good idea. If I still have the problem, I'll probably look at the thermostats. I'm puzzled about the shower faucet discussion. We have never shut a shower off at the head rather than at the faucets. If I understand correctly that was a concern. Thanks again for all the responses.
The WH bypass valve being open is what caused your warm water....the cold was mixing with the hot right out the hot outlet.
No mystery......problem solved.
A good cleaning is always a good idea.