Memory serves me we removed the Water Filters from the Barrel Pumps in the Winter up in Alaska.....two reasons....water becomes ice and jet fuel gets awfully thick and hard to pump by hand.
We are talking Temps of 0 degrees F and colder....down to like -45F.
I went South after I saw -50F on any OAT Gauge as I was a fair weather pilot.....and not a real Sourdough.