Re: troubleshooting hot water flow
Not sure if this will help, but our sink pressure was slow and causing the water pump to surge. It didn't do it at the shower or toilet. Running it thru the city water hook up, we notice a slower flow of water. We removed the faucet screen on the sink and pulled out something thin and black. Wasn't plastic, sticky or gooey....weird. The fact that yours only does it with the hot, does make sense that it could be related to the hot water lines. If you have an air compressor you could try to blow air into the lines to see if it will clear the lines. Be sure to by pass your water heater.
Post back your results. It could be useful information for someone else with a similar problem.
Congratulations and happy travels.
Jim & Darlene, & Pickles our Teddy Bear
2013 RT Adventurous...aka Roada
Wisconsin Dells WI...Water park capital of the world[/color]