Just replaced my water heater last night.
I used to do some plumbing and have a general knowledge.
On the old water heater, the cold water feed, was 1/2" copper, that
narrowed down to 3/8" copper, before entering the 3/4 nipples into the
water heater. The hot water coming out, was also 3/8" copper coming
off the 3/4" nipple and fed a 1/2" hot water line.
Undersized piping, I'm sure.
I would like to someday, redo the plumbing in the house and take out
some of that undersized piping. So, I hooked up the water heater with
3/4" from both the hot and cold, and plumbed into the 1/2" piping
(planning for the future).
This morning, while showering for the first time with the new water
heater, the water temperature was very inconsistant and the water
pressure seemed lower. The water would go from hot to cold and it was
very hard to maintain a stead temperature. The water was hot...very
hot, when turned to just hot.
At first I thought maybe it was an anti-scald valve or something...that
I had the water too hot. But I realized this was not an anti-scald
valve. It was a regular oldtime shower valve.
Would my taking that 3/8" pipe out and replacing with 3/4 cause these
symtoms? Or could it be something with the new water heater?
Thanks for your anticipated reply.