So I have this Hayward offline chlorine feeder. The one with the small black hoses. I bought a 2nd one because I used some Magic Lube on the first one. These things are only good for about 2 years. At that point they get so much crust on them that you can't close them properly. Since I have 2 I would like to clean up the old one and get it ready to replace the one that is currently online. So my question is. How do I get the crust out of this thing and how do I clean up the Magic Lube mess? I know the seals are replaceable and have done that many times. Also I think I read about using silicone instead of Magic Lube. Any advice would be great.