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Drain Valve Lubricant

Lubricates black and grey water holding tanks for smooth operation

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Home Support Drain Valve Lubricant

Thetford® Drain Valve Lubricant

  • Lubricates holding tank systems and drain valves from the inside
  • Restores valve operation and prevents seal wear
  • Coats plumbing lines for smooth tank evacuation
  • Prevents sticky drain valves and keeps plumbing lines clear
  • Works in both grey and black waste water tanks
  • 100% biodegradable formula

Frequently Asked Questions

Cleaning and maintenance

Protecting the seals must be foremost in mind when cleaning the RV toilet. Bleach and acids found in most household cleaning products will potentially dry out and damage the seals. Mild organic acids and Citric Acid will not cause harm. The acids generally found in household toilet bowl cleaning products, will dull and pit the bowl surface.

“Non-abrasive” household cleaning products may still be abrasive enough to dull and scratch the RV toilet bowl making it vulnerable to future stains. Thetford® products are specifically developed and tested on RV surfaces and they’re compatible with RV plumbing systems.

How to

RV toilets use a small amount of water during flushing

  • Only 1 qt of water is used for flushing, opposed to 1.6 gallons used by a home toilet

Holding tank holds waste for several days – it’s not a mini septic tank

Major challenges:
  • Deodorizing the RV waste holding tank
  • Keeping the holding tank clean
  • Treating super-concentrated waste