I just put in a new water heater, and decided to research to see if I did it right. My configuration has the trap between the supply and the shut-off valve, rather than between the shut-off valve and the water heater. Is that okay, or should I correct it?
Grr, this is becoming very frustrating. I had purchased what the plumbing guy at Home Depot recommended (he had never heard of a gas line sediment trap). Here's what it looks like:
Well, after I realized the trap needs to be downstream, I went back to get a different valve, so I could connect the valve between two pieces of black pipe. The same guy helped me, and told me I could connect the compression end to the black pipe.
I tried it out, and this ended up leaking, with the black pipe rubbing against the valve handle. Not good. So I was planning to go back AGAIN and this time insist on a different valve, like this one:
But we had an HVAC professional at the house (he was adding freon to our 2-year-old leaky AC, which cost $430 to repair, even under warranty. Between the water heater and the AC, I can't catch a break this week...) He told me to go ahead and put the trap upstream from the valve, that the code doesn't matter, everyone does it that way.
Should I follow the advice of this professional, or should I follow my instinct and exchange the first valve for something like the second and follow the code? Thanks for your patience and time.