i am not a plumber nor am i knowledgable of the lingo but because of a persistent problem i am contemplating having the U drain trap removed. our house was built in 1925 and we live in brooklyn new york. the trap is the original one. in the basement there is a "pit" which contains the U drain trap which has two covers (house side and street side). we keep having backups on the house side from toilet paper. we have never had a backup from the street. i would like to have the trap removed and not replaced. i know this would totally eliminate our problem. what would be an approximate cost estimate for this kind of job?