Re: hot water and recirculating pump
I'm going with John's suggestion.
Remove the shower faucet handle (some of them have a little cover plate that pops off to reveal the screw, either on the front or underneath). Next to the stem, there may be a little piece of plastic that engages teeth in the faucet body. This piece of plastic is the stop; it can be moved to adjust the maximum temperature.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.