Plumbers come onto this website, and are unable to spell, fact. There is a spellchecker available, they opt not to use it. Plumbing has become more efficient in recent years with the use of plastic pipes, and glue etc...
So How are my comments rude? If you give a quote to a customer, and you cannot spell, how do they perceive you? If you have to replace a plastic pipe joint, then how do you justify the cost of a ceramic pipe?