I Use An Oxygen Concentrator With A Water Bubbler In

I use an oxygen concentrator with a water bubbler in the line. I get water up my nose and during the day. I've pt twu water traps in line, but it still happens. It is a annoying problem and wakes me up in the night and bothers me during the day. Is there a way to fix this problem. A friend of mine says that he put vodka in his uncles oxygen bubbler, but isn't that bad with the alcohol fumes?