Should home-buyers have a professional plumbing inspection done? Sparkling clean with less scrubbing – find another use for your elbow grease. What did you do to get it working then? I'm so fed up of showering in an ankle-deep puddle of soapy water...the plughole has become so blocked up with mank i've tried squirting bath cleaner down it, flushing it out with boiling water and ever immac. Are you looking for cost.