ExperienceI do not claim to be an expert but I myself live in a mobile home which a lot of plumbers turn their nose up to. So I have been forced to learn a lot on my own. The ony difference is I have PVC piping instead of regular piping such as copper or galvonized or what not and that a person has to crawl under the trailor. It is a bit of an inconvienance actually. I deal with the same things a house owner may deal with and then some. My main issues though deal with water leaks and hard water deposits.