dont wash me van with hot water?....
your having a laugh are nt ya!!course i use warm/hottish water.always have with no problems!!
as for filling up via DI.the resin is ok up to 60 degrees.i have changed my mind though as its too much of a ball ache filling up in the morning.also the connector off my bath tap keeps slipping off due to the temperature of the water making the rubber fitting very soft!! :
ive got a duvet over full barrels in the van and i find them ok if it doesnt get below -2 overnight.