Do the Valterra Horst Miracle Probe Sensors Need to be Cleaned
Updated 07/09/2025 | Published 11/15/2017
Question:
Do you need to clean the Horst miracle probes , on the black tank, if so how often. Do you need to remove the probes to clean them. How long will the probes lasts before you need to replace them, Thanks,
asked by: Ron
Helpful Expert Reply:
I spoke with my contact at Valterra regarding the Horst Miracle Probe Sensors # T21301VP referenced in your question. She stated that the probes do not require any kind of maintenance once installed and you will not need to clean them. Because the probes are surrounded by Teflon, they are not prone to liquid residue or debris buildup.
She was not able to confirm an exact lifespan for the probes, however she did state that they are designed to last and there is no reason that they would not remain functional for as long as you need them. They do also include a 1 year warranty.
Product Page this Question was Asked From
Horst Miracle Probe Sensors for RV Black Water Tanks - Qty 4
- Smart RV
- Monitoring System
- Water Tanks
- No Display
- Monitors Only
- Valterra
more information >
Continue Researching
- Shop: Horst Miracle Probe Sensors for RV Black Water Tanks - Qty 4
- Q&A: Replacing Black Water Tank Sensors
- Q&A: Horst Miracle Probes for Gray and Black Water Tanks
- Q&A: Troubleshooting Valterra Horst Black Water Tank Sensors Read Empty All the Time
- Q&A: Troubleshooting Tank Water Sensors Reading Empty When the Tanks are Full
- Q&A: Storage Cover Recommendation for 2022 NASH 23d Travel Trailer
- Q&A: Cover For A 2013 Koala Super Lite Series M-21CS
- Q&A: How Much Power Does the 3.3 cu ft Norcold RV Mini Fridge w/ Freezer Use?
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: Brake Controller Installation: Starting from Scratch
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: 5 Reasons to Convert Your RV Lights to LEDs Today
- Article: How Does an RV Water Pump Work?
- Article: How to Repair an RV Roof
Dennis
7/9/2025
I installed these probes in both black and gray tanks a few years ago. The gray ones are working fine. The black ones, not so much. Even after a thorough flush, they still show full levels in the tank. I talked to the manufacturer and they recommended not removing them to clean them as they might not be watertight after reinstallation. Best to jus install new ones.