Older style homes have septic / waste systems that may effect the health of the homes occupants. Recent property for sale where drainage smells evident externally and wafting through the home internally. Not a great selling point. Tanks were cracked and poorly sealed. In some cases repairs may not be allowed to septic systems and upgrading to a new eco system can be a costly exercise. A building report to the Australian Standard does not require the inspector to comment on septic / plumbing issues. Coastal Home & Building Inspections Sunshine Coast reports will always identify issues and refer you to a relative specialist in these matters.