We never use granular bwc. Always liquid. Our pick up truck spray rigs have been removed & winterized. Earlier this week, we replaced the liquid bwc in our T's with RV anti-freeze. (low temp was 12) We will switch back to running liquid bwc in our T's this week to finish the season (by Thanksgiving). Then put RV anti-freeze back in. It takes about ten minutes per T to swap out liquids. We lift them up with a forklift to completely drain the saddle tanks.
Proud subscriber of TURF Magazine. (thanks Ron)