cant really figure it outcan you?
if you are re-plumbing the house it is best that you use schedule 40 PVC as it is the strongest and will last longer than any other pipe .. buy the purple PVC glue as it holds better than any other glues ..
A project partner you can rely on.
no real way to stop them from stealing them but you're best chance would be to install a paging type alarm system so that it will notify you when the alarm goes off, install motion lights where you're car sits, get a dog any size will do as long as it will bark, go to harbourfreight web site and buy a security camera i think they still have them for $40.00, they are b/w with night vision and sound they hook to you're TVs A/V inputs, but the night vision is kinda weak after 20 feet, talk to you're neighbours see who stays up at night and who's home during the day and set up you're own neighbourhood watch, try to park you're car close to you're bedroom window, because they will use a cordless sawzall to cut out the converter, so welding wont help and trying to make a plate to cover it would only increase you're chances for a fire, most scrape yards pay between 10 and 40 dollars for converters depends on the type, the reason is for the honey combs inside of it, its some type of ceramic material, what its used for i have no ideal, but they want the guts out of them badly. I've heard roomers of the honey combs being used for some type of medical research, again its just a roomer. other than locking it up in a garage i guess you could air bag you're ride and set it on the frame when you're not driving lol would be alot harder to get to it that way . best of luck and i would get a good alarm and camera with sound, and try to park close to you're bedroom, if you do catch them in the act i wouldn't confront them keep you're distance, call the cops which will take a hour for them to show I'm sure and yell what do you think you're doing to my car or something like *^*%^*^*%^ away from my *(^%(^% car you ^*%$*^%lol, from a safe distance,