Hi all, last week in the freezing weather one of my RO filter vessels, the end bit (that screws on) cracked and fell off (i did have it all wrapped up).ive since glued it and it seems fine, no leaks or such like.but now i cant seem to be able to get any water to go through the system so my question is...are the membrane filters now knackered as they were probably frozen too. . It always was pretty slow.thanks for any advice.Ian