- Aug 19, 2017
- Reaction score
- North Reading, Mass.
That may be true but I saw one recently,(may have been on this or another forum) where the mounting of the relief valve was a few inches from the side of the tank due to some fittings(don't remember the fittings). That dictated a need for a longer probe to get it inserted sufficiently into the tank.The longer one just gives you more room for your wrench, I'd guess, but I welcome a more learned opinion.
So it makes me think, there may be different requirements for probe lengths based on design of tank.