Product Review

Caravan "overnight" RV Holding Tank Cleaner, a better solution to completely fix most RV sensor problems.

Why no chemicals: Chemical treatments kill bacteria (good and bad), at best they temporarily cover odor, forming a smelly sewer sludge coating in tank and on sensors.

Our industrial strength micro-organisms immediately begin multiplying bacteria while creating enzymes.
Enzymes break down more complex molecules into something bacteria can eat, completely eliminating smelly sewer sludge coating in tank and on sensors.
Resist the old habit of rinsing your tanks, our microbes feed and multiply, becoming stronger and more effective on residual matter.

Cleaning Tank Sensors (level gauges) "overnight"
1-Fill tank to about ½ full - preferably with warm (not hot) water
2-Shake well, add 8oz Caravan Sensor Cleaner through toilet
3-A short drive is helpful but not necessary
4-Fill tank to full with water, preferably warm
5-Allow 8-12 hrs before dumping (or longer, microbes need time to consume and dissolve tank contents)
6-Drain tank. Contents should be mostly broken down to liquid and gauges should read "Empty"
7-If unsuccessful then repeat steps 1-6, increasing dosage to 24-36oz and time to 24-72 hrs
8-Gauges should be restored to working condition
9-If second treatment is not successful (about 1% of users will experience this) contact us and often we can assist with tips that may help you achieve your desired results or Hassle-Free refund.

Tips For Preventing Gauge and Tank Problems:
-Keep dump valves closed during normal use
-Fill tank above 2/3 before dumping
-Pre-charge tank with ample water and Caravan Tank Treatment after dumping
-Flush toilet correctly (when going #2) with plenty of water, avoiding over use of tissue. Simply using more water will improve toilet and tank function
-Avoid bleach and chemical cleaners