We just moved into a new house. While crawling through the crawl space on an unrelated issue I noticed that one of the drain lines was leaking.
Further inspection showed that the shower in the master bath does not have a trap. Instead the pipe drops about 24 inches straight down (very noisy shower btw) to a joint that is about an 80 degree turn. The pipe then runs about 8 foot uphill to the main drain line. There appears to be a cleanout beside this 24 inch drop and this is what is leaking.
My question: The plumber is coming to repair the leak. Am I right to insist that he also install a trap on the drain and reroute the shower drain line in such a way that it is a downhill run to the main drain line? There's room to do this, it'll just take more pvc.
Thanks,
Easeful