I thought about the permanent pressure gauge, but decided I could just as easily run one on the water heater drain valve. I think the cost delta was pretty large as well, hence my choice.
My current water heater is sludged up enough that the drain valve is mostly clogged - thanks to lack of maintenance by the prior owner.
Ken
BBI: ...”you better not forget the safe word because shit's about to get weird”...
revchuck38: ...”mo' ammo is mo' betta' unless you're swimming or on fire.”