A strong septic smell inside your home is never a good sign and should be addressed immediately. This unpleasant odor usually means that gases from your septic system are entering the house due to plumbing or venting issues. Common causes include a clogged vent stack, dried-out floor drains, leaking toilet seals, or even an overfilled septic tank. When the system’s ventilation doesn’t function properly, gases like methane and hydrogen sulfide accumulate indoors — creating a smell similar to rott
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