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Treating Your RV Holding Tanks - Instructions

Select your style of camping to learn how to properly treat your holding tanks

Full Hookups

Dry Camping / Boondocking

Camping In High Heat

Weekend Warriors

General Tips For Success


Full Hookup Instructions

For full hookup camping, we recommend using RV Digest-It Holding Tank Treatment liquid treatments. If you struggle keeping tank odors under control in high heat, consider supplementing your RV Digest-It treatment with Unique Tank Odor Eliminator.

To treat your black water tanks with RV Digest-It liquid, follow these instructions while camping on full hookups.

  1. Determine Your Black Water Holding Tank Capacity
  2. Flush Your Holding Tank Thoroughly - We recommend flushing for 20 - 30 minutes.
  3. Close Your Black Water Tank Valve - Always keep your black tank valve closed, except for when dumping your tank.
  4. Fill Your Black Water Tank With 3 - 5 Gallons Of Water - Either pour through your RV toilet or hold down your toilet flush pedal for 1 minute.
  5. Shake RV Digest-It Bottle Well.
  6. Fill Your RV Toilet Half Way With Water
  7. Pour 2 oz. RV Digest-It Holding Tank Treatment Into RV Toilet.
  8. Flush RV Toilet
  9. Repeat This Process Every Time You Dump Your Black Water Tank - We recommend dumping when your holding tank reads 2/3 full or after 4 - 5 days to prevent odors.

Dry Camping / Boondocking Instructions

For dry camping and boondocking we recommend using RV Digest-It Powder (either drop-in's or scoop-able powder). When access to water is difficult, the powder variations of RV Digest-It are the most effective for treating waste breakdown and eliminating odors.

To treat your RV holding tanks with RV Digest-It powder, follow these instructions while dry camping / boondocking.

  1. Determine Your Black Water Holding Tank Capacity
  2. Flush Your Holding Tank Thoroughly - We recommend flushing for 20 - 30 minutes.
  3. Close Your Black Water Tank Valve - Always keep your black tank valve closed, except for when dumping your tank.
  4. Before Your Trip, Pre-Charge Your Black Water Tank With 5 - 7 Gallons Of Water - Either pour through your RV toilet or hold down your toilet flush pedal for 1 minute.
  5. Fill Your RV Toilet Half Way With Water
  6. Add 1 Drop-in or 1 scoop of RV Digest-It Holding Tank Treatment To RV Toilet.
  7. Flush RV Toilet
  8. Repeat This Process Every Time You Dump Your Black Water Tank - We recommend dumping when your holding tank reads 2/3 full or after 4 - 5 days to prevent odors.

Camping In High Heat

For RVers who will be camping in high heat we recommend normal treatment with RV Digest-It (powders or liquids depending on how you are camping), coupled with an odor elimination product like Tank Odor Eliminator. All bacteria based products will lose some efficiency in high heat so it is important you supplement your tank treatment with additional odor protection to keep strong smells at bay.

To treat your RV holding tank with RV Digest-It liquids or powders in hot weather, follow these instructions. 

  1. Determine Your Black Water Holding Tank Capacity
  2. Flush Your Holding Tank Thoroughly - We recommend flushing your tank for 20 - 30 minutes.
  3. Close Your Black Water Tank Valve - Always keep your black tank valve closed, except when dumping your tank.
  4. Fill Your Black Water Tank With 3 - 5 Gallons Of Water - Either pour through your RV toilet or hold down your toilet flush pedal for 1 minute.
  5. Shake RV Digest-It Bottle Well.
  6. Fill Your RV Toilet Half Way With Water
  7. Pour 2 oz. (add 1 drop-in or 1 scoop-able powder) of RV Digest-It Holding Tank Treatment Into RV Toilet.
  8. Flush RV Toilet
  9. Repeat This Process Every Time You Dump Your Black Water Tank - We recommend dumping when your holding tank reads 2/3 full or after 4 - 5 days to prevent odors.

Add one Tank Odor Eliminator pod to your holding tank whenever odors become excessive from high heat.


Weekend Warrior Instructions

Even if you are the occasional camper or weekend warrior, it is always good to practice good holding tank habits so your trip doesn't get ruined by tank clogs or excessive odors.

For Weekend Warriors, we recommend using RV Digest-It Holding Tank Treatment throughout your trip. Read our full hookup instructions or dry camping / boondocking instructions above depending on how you will be camping!


Black Tank Rules For Success:


General Tips For Success

In general, using our products is straight forward, but there are a few things that you can be aware of that will improve your results when using RV Digest-It in your holding tanks.

Best practices for RV holding tanks:

If you need additional help, please reach out! We are always happy to help resolve any issue you may be having. Email us at support@uniquemm.com and we will help get you back on the road!