> Case in point: I fill water up to just touching/under the valve...
That's precisely how I do it, and I was taught to do it this way by my mother as a kid, so you know at least two people who do it like you.
That's precisely how I do it, and I was taught to do it this way by my mother as a kid, so you know at least two people who do it like you.
no higher than the valve, since it may lead to overpressure