I'm having problems with my drains (I have a private septic tank) and
to my untrained eye it looks like the problem is in the part of the
drainage channel a foot or two before it enters the septic tank.

Additionally I've been told in the past that the U-shaped loop of
plastic inside the solids tank (where the pipe enters the solids tank)
is too close to the inlet pipe which can additionally cause solids to
build up within that U-shaped gap.

Would I need to call out a 'normal' plumber to get this sorted out or,
given the very messy nature of the job, is this a job for a 'sewerage
plumber' (if such a person exists)?


Thanks