On the hard ... just burp it. Slide it back with hand pressure and the water will come out.
In water, you better keep some heat on it. If it freezes you are done !
Remember that winter 3yrs. ago with 14 days in a row at -30C
(25yr. liveaboard in Mississauga, Ontario) with a dripless seal.
It's taken me 69yrs to get it right. I ain't changin' now !
If you can live with the consequences, go for it - wg
Y'am what y'am an' thats' all that y'am - Popeye
I had an allergic reality - Jillie the Bean