Hello all. I just received a $400 bill for a blocked toilet in my Chermside West investment property. The plumber attended at 11am on a Saturday morning and this is what is included on his report. "Gained access to property after hours and found that the stack and toilet waste where blocked at the back of The building. Entered the jet rodder down the line from the toilet waste and cleared blockage on the junction of both fixtures. Entered the camera down line. Inspected and found the drain to be in good condition and unknown reason for blockage was found. Flushed through drain with water. Tested and commissioned." Apart from what feels like daylight robbery ($400 for 10 minutes work) am i as the landlord responsible to pay this when the toilet / plumbing is in good condition? It feels like the tenants should be responsible..? Thanks again. Daniel.