5 Best RV Black Tank Sensor Cleaners for False Readings (2026)
TL;DR If your black tank is empty but the monitor still reads Full or 2/3, the best pick for most RVers is Unique Restore-It , a purpose-built black tank sensor cleaner that works parked. Need results fast? Try Walex Commando (12 to 24 hours). For sensors on both tanks, use Thetford Level Gauge Cleaner. No … Read more