Dealing with it now. ENT good for a start. I am looking further as that is not my problem. If ENT doesn't help PM me and I will let you know if I find more help elsewhere, maybe will help you also. Dave
Check out video on YouTube by Peter Zeihan titled why EVS aren't the Green tech panacea. This guy has his finger on the pulse of a whole lot. He puts out very reliable information. This will put your mind at ease about EVS replacing i c e