• Septic tank effluent surfacing on your lawn
• Strong or bad odours coming from the septic tank or drains
• Pollution of nearby ditches or streams with effluent
• Slow flushing of toilets
• Gurgling in the drains
• Ground movement (dips) near the septic tank or soakaway
• Toilet overflowing
• Overflow at washing machine hookup
• Overflows into shower or bath when the sink is discharged
• Drain inspection chambers have standing effluent in them. These Septic Tanks should be empty.