Watch for patterns
Know the signs before the sewer line fails
Sewer blockages usually develop gradually and give warning before a complete backup. Watch for several drains slowing at once, toilets that clog or overflow often, gurgling from drains and frequent clogs throughout the house.
Sewage odors inside or outside, water backing up into tubs or showers and standing water near an outdoor cleanout are also signs. Unusually green patches of grass above the sewer line can point to a leak. Several of these together are a good reason to schedule a cleanout before a backup.
