Need help again.
Off the back of several water heaters I pull, there is a 1/4 turn 90 valve
in brass on the hot and cold connects. There is a line off one leg
connecting each to the other direct as a bypass. Then there is the typical
hot supply line out the other leg. There is the typical cold inlet on the
valve other leg. Why do people do this? What is the purpose of being able to
open the inlet cold leg and hot leg to each other which would simultaneously
cut off the hot water heater from the system for cold water flow to the hot
lines? Is this for winterizing fluids to avoid putting the fluid into the
hot water heater?
I need to know if I should use a length of copper or other metal line
material at the heater instead of direct PEX plumbing at the water heater
female connects. Even if I use the brass bypass valves, do I still need to
keep some sort of distance from the direct heat of the water heater for the
PEX?
Trying to complete this today to get the trailer closed up before the rains.
Thank you..
-Eddie-
Houston, TX