many of you know I collect rain water and already have 1000ltr in back garden .I got a new one the other day to add to the collection , looks brand new opened it up and stinks of what smells like spirits ,maybe like a stong sanitizer ???? any way jet washed outside and inside even though it wasn't dirty. iv felt the inside wall to see if there was any residue of what ever was last in there ,there doesn't seen to be any it just feels like a fleshy jet washed tank should feel like .......... but it still stinks of this stuff . now whats the best option ?? just let it air out and hope the smell goes away or is it best to just keep filling the tank up giving it a clean and emptying out a few times ? not really wanting to use chemicals on it but if I have to what do you guys recommend ?