Our drains seem to block and back up about ever six weeks or so. DH goes out and clears it with drain rods (nice job!) but then a month or six weeks later it is blocked again. This has been happening for the last year but didnt happen the first two years we lived here.
Advice needed as to whether it is worth calling out expensive drain people? DH says he will just clear it, but I dont see why this should happen so regularly.