RV Digest-It Classic 32oz RV Black Tank Treatment. Unique Camping + Marine

Removes Sensor Buildup RV Digest-It Classic RV Black Tank Treatment

Camp More. Worry Less. Unique Camping + Marine

RV Digest-It Holding Tank Treatment bottles, one large and one smaller, with an orange arrow pointing from the smaller to the larger.

RV Digest-It Liquefies Toilet Paper and Solid Waste. Unique Camping + Marine

RV Digest-It Classic Helps Prevent Odors Even In Hot Weather.

RV Digest-It Classic works with all camping styles whether you're boondocking or on full hookups.

RV Digest-It Classic RV Black Tank Treatment 128 oz. Gallon. Unique Camping + Marine

RV Digest-It Holding Tank Treatment liquid in large and small bottles, with emphasis on the larger bottle's label.

RV Digest-It Classic Gallon Liquefies Toilet Paper and Solid Waste.

RV Digest-It Classic RV Toilet Treatment lets you camp your way. Whether Dry camping or on full hookups.

RV Digest-It Classic Helps Prevent Odors In Hot Weather. Unique Camping + Marine

RV Digest-It Classic 32 oz. 3-pack RV Black Tank Treatment. Unique Camping + Marine

Best Seller

RV Digest-It Holding Tank Treatment | Liquid

Name: RV Digest-It Holding Tank Treatment | Liquid
Brand: Unique Camping + Marine
SKU: 413
Price: 15.99 USD
Availability: InStock
Rating: 4.8 (1235 reviews)

$15.99 - $49.99

Need Help Selecting The Right Product? Click Here!

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Overview
Ingredients
Help

Stop wasting time worrying about your holding tanks and spend more time enjoying your RV! RV Digest-It is powered by the strongest bacteria and enzyme formula available today and will ensure your tanks remain free from odors, waste buildup, and clogs.
RV Digest-It Holding Tank Treatment | Liquid

Water Alcohols,C9-11ethoxylatedPropylene GlycolSodium Citrate1,2 Benzisothiazolin-3-one solution of Dipropylene GlycolProtease LiquidAmylase LiquidCellulase LiquidLipase Liquid5-Chloro-2-methyl-2H-isothiazol-3-one and 2-Methyl-2H-isothiazol-3-oneViable Bacillus BacteriaNeutoleum Fragrance

To learn more about our ingredients and our companies approach to building trustworthy products, click here.
We're here to help! Learn more about this product or contact our customer support team.

RVer opening an RV waste valve with RV Digest-It Cropped to the right.

RV Digest-It Classic

Digests Solid Waste & Eliminates Toilet Odors

Green Checkmark. Unique Camping + Marine

Eliminates Odors In All Camping Styles

(hook-ups, dry camping, full time)

Digests Solid Waste

Maintains Working Sensor Probes

Trusted By Thousands Of RVers Every Day

For Gray and Black Tanks

Available in Liquid, Drop-In Pod and Powder

Does Your Holding Tank Treatment Work?

Breaking down solid waste is a vital function of a good holding tank treatment. Nearly every brand of tank treatment claims to break down solid waste inside holding tanks, but do they?

For this demonstration we added high-quality dog food to a jar with water and then treated it with the top-selling RV holding tank treatments. You can see that even though most brands claim to break down waste, they simply don’t when put to the test!

You may be asking, why dog food? Well, to be blunt, it’s because no one wants to see us dissolve human poop! High-quality dog food has all of the main components of human waste: proteins, fats, grease, carbohydrates, dyes, etc. This demonstration allows us to show how RV Digest-It works without making your stomach turn.

Enjoy Your RV. Leave Your Holding Tanks To Us.

The strongest all-around tank treatment

Liquefies solid waste for easy dumps

Digests all brands of toilet paper

Prevents backups and clogs

Contains no formaldehyde or bronopol

Won’t damage or degrade seals or valves

Complies with all state dumping laws

Septic safe

Proudly made in the USA

Contains no hidden chemicals

100% Satisfaction Guaranteed

RV Digest-It is Unique

RV Digest-It RV Toilet Treatment Liquefies Toilet Paper and Solid Waste. Unique Camping + Marine

RV Digest-It RV Toilet Treatment Prevents Odors

Remove Built-up sludge on your black tank sensors. Unique Camping + Marine

#1 brand recommended by RV techs

Top selling holding tank treatment

Thousands of 5-star reviews

100% satisfaction guarantee

Supported by world-class customer support

Used by RV service departments to clean black tanks / Carried in thousands of retailers from coast to coast

Customer Support

Need Help?

Got a question about a Unique Camping + Marine product? Need help placing an order or tracking a package? Are you struggling with a problem like misreading sensor probes or a clogged tank and you just can’t figure out the next steps? Don’t worry! We’re here to help!

Contact Us

What Does The Number On The Back Of The Package Mean?

Unique Camping + Marine holding tank treatments make it easy for you to maintain clean, clog- and odor-free holding tanks. The Unique Method is a proven holding tank treatment process that was developed through in-depth conversations with campers and virtually eliminates all problematic tank odors, prevents clogs and pyramid plugs, and ensures that tank sensors continue to read properly. Just refer to the back of the bottle for instructions.

Learn More About The Unique Method

Overall rating: 4.847773 / 5 from 1235 reviews.

AI Generated Review Summary

RV Digest-It Holding Tank Treatment is highly regarded for its effectiveness in breaking down waste and controlling odors in RV tanks. Customers praise its ability to dissolve solids, prevent clogs, and maintain sensor probes. The product is also noted for its fast shipping, excellent customer support, and strong bacteria and enzyme formula.

Summary topics

Tank Cleaning Effectiveness (3%): Customers appreciated the Unique tank cleaner for its ability to clean RV tanks and toilet bowls.
Shipping Speed (4%): Customers expressed appreciation for the fast shipping, with multiple reviews mentioning quick delivery and excellent customer support.
Tank Treatment Effectiveness (15%): A significant amount of customers expressed satisfaction with the tank treatment, stating that it effectively breaks down toilet paper and solids.
Camping Odor Control (3%): It was noted by customers that the RV Digest-IT product effectively dissolves waste and is odorless.
Product Results Satisfaction (3%): Customers raved about the results, with many expressing their happiness and satisfaction with the product.

Review topics: [].

Review highlights

"An order for a case of four gallons is shipped fast and prompt." — Crystal R.
"excellant product, good service, free shipping and good price when purchased in pack of three" — Harry K.
"No longer have any problem with tanks getting plugged with paper and keeps a good smell when the tank is full." — Jolenee R.

Reviews

I've tried many products, but

"I've tried many products, but when l tried your's l was impressed. It does exactly what's it's intended to do. Thanks for a fantastic product. You are. NUMBER ONE."

— Nancy F. (5/5)

Great for odor control

"The RV Digest-It liquid is great for odor control. It might also be of some help for buildup in the kitchen drain line, without using harsh drain cleaners. To aid with the enzyme activity in the black water tank, I use this along with Unique's stick packs."

— sc (5/5)

A Must Have!

"This is the BEST RV Tank treatment! 2 in 1!!! Other treatment brands we've tried worked OK for the black tank. Digest It MAX works so well! No sewage smell in the camper and it breaks down the matter so very well. We are most impressed with how it also works for our kitchen gray tank. . . AMAZING!!! We are always so careful when washing dishes that we get as little food waist in our gray tank as possible. No matter what gray tank treatment we used in the past, we would have the most awful odor when dumping the kitchen gray tank. Digest It Max has us sold. No other tank treatment will be purchased by these campers. Buy it, you'll love it too!"

— Bell F. (5/5)

Not stinky anymore

"I have only used this twice in my holding tanks. Have not had stinky issues with my grey or black water tanks. Happy Camper"

— Sandra S. (5/5)

This works great. Have used

"This works great. Have used it for a few years now and would recommend it!!"

— Julie B. (5/5)

Ounce of prevention worth a pound of cure

"New travel trailer. Purchased this along with a few other Unique products. No stink. No issues with flushing or sensors. Great product that will keep mom and the kids happy while maintaining your system and preventing future tank issues. Thank you. Tom"

— Tom S. (5/5)

Love

"Love this product and love the Unique for my home but I really need you guys to be able to send it to Canada not sure what to use when I run out. Thanks"

— Tammy M. (5/5)

Eliminates odors, doesn't just mask them.

"My wife and I have been full-time RVers for the past 8 years. I hold Masters Plumbing License in 2 States. We have previously tried every product out there, this is the only product I can truly say will do what it claims."

— Ricky M. (5/5)

Skip the DIY

"This product works great. Cost effective. Easy. Convenient."

— Tina L. (5/5)

Always a great job. . keep up

"Always a great job. . keep up the good work blessings upon yall"

— David G. (5/5)

Q&A

can this product be used for gray tanks?: Yes, RV Digest-It is designed to treat black and gray tanks. You'll just add 2 oz. to your black tank and 2 oz. to your gray tank each time you treat your tanks.
Does it work on hair clogs?: Hello! The active bacteria and enzymes in RV Digest-It can help to break up and release the biofilm that causes hair to bind-up inside a drain, but it won't burn through or release the hair. So technically speaking, yes, it can potentially help with hair clogs, however, it's not specifically designed to do this job so we don't offer any guarantees on its ability to release hair clogs. We do have a lot of experience helping people solve hair clogs, so if you need assistance, please feel free to reach out to our support team! Thanks and Happy Camping! Unique Camping + Marine
What is the shelf life on the drop in pods ?????: Great question! The shelf life for all Unique Camping + Marine products is two years, but they typically last MUCH longer. If you'd like to see when you product was manufactured, feel free to visit this page: https://uniquecampingmarine.com/pages/customer-support and click on the FAQ entitled: What Is The Shelf Life Of Unique's Products? Hopefully that helps! Happy Camping! Unique Camping + Marine
I just opened my first jug of digest-it liquid and I am very disappointed by how strong the scent is. Does the powder form have the same amount of perfume in it?: Hi there! Thank you for reaching out! I'm surprised to hear that you found there to be a lot of fragrance in the liquid version of RV Digest-It. I think that's honestly the first time I've heard that in the 10+ years I've worked here! No hate on our end AT ALL; we totally understand that many people want as little fragrance as people! I've just never heard that! :) To answer your question specifically, our drop-in pods have no fragrance at all, so that may be a route you consider going. Hopefully that helps! We really do appreciate you reaching out! Sorry the fragrance was too strong for your liking! Happy Camping! Unique Camping + Marine
If i bought RV Digest last year. Than the product sat in my garage all winter. Is the product still good to use this year?: Great question! All of our products have a shelf life of 2 years from the date of manufacturing. To find the date your product was manufactured, look at the first 6 digits of the code stamped on the bottle. This is the date it was produced (MM/DD/YY). If your product is older than 2 years, don’t assume it’s a lost cause. We keep retains of every batch we make, going back 15+ years, and the products still work to their full capacity. It’s highly likely that yours will too - even if it is older than 2 years. Hopefully that helps!
How much of the Digest-it Liquid treatment would you use in a 300g black holding tank?: Hi Amy, Thank you for reaching out! :) I'm not too sure if you mean a 300 black tank in an RV or a 300 gallon black in a boat - each one has a different answer so please find both below: - 300 RV black tank: For this large of an RV black tank, you'll need anywhere between 15 - 20 ounces of RV Digest-It. The tank is large and would need quite a bit of treatment after every dump! - 300 Boat black tank: Our [Marine Digest-It](https://uniquecampingmarine.com/collections/marine-products/products/marine-digest-it) would be a better option here than would the RV Digest-It. It's specifically geared toward larger boat holding tanks and would require 1 ounce per 10 gallons. For a 300 gallon boat tank, you would need 30 ounces of Marine Digest-It per treatment. I hope this helps but if you have any other questions, please feel free to give us a holler at support@uniquemm.com! We're always happy to help! :)
How much product do you put in a 10 gallon holding tank?: Hi Mary, thank you for your question! For smaller holding tanks such as yours, we generally recommend starting with a scoop of [the powder variation of our RV Digest-It Holding Tank Treatment](https://uniquecampingmarine.com/collections/rv-products/products/rv-digest-it-powder-treatment). This is solely because with the powder variation, you can start by adding one dose directly to the black tank and then easily scale back the amount you use, if needed. Following this, you should hopefully be able to find an amount that works for your particular usage! That being said, if you really want to use the liquid version of RV Digest-It there are no problems! With what we've seen for the liquid, I’d start with two capfuls in the holding tank and see how that works for you. From there I’d scale up or down until you land on the perfect amount. I'm sorry I can't be more exact here, smaller tanks are finicky in that you just have to test and see what will work best for you! I hope this helps but if not, feel free to shoot us an email at support@uniquemm.com and we can go from there! Thank you and happy camping!
Do you recommend using the three products together?: Hi Rod, thank you for reaching out! You can definitely use any of our products together with absolutely no problem! Generally, people tend to use RV Digest-It and the Toilet Cleaner together as regular treatments for their toilet and tanks! If you're looking to use RV Digest-It along with the Tank Cleaner for black tanks or the Sensor Cleaner for black tanks then again, that is definitely safe to do but it may not be necessary! Both Tank Cleaner and Sensor Cleaner work perfectly well on their own to solve either a problem with clogs or with sensors. I would highly recommend browsing our RV guides and resources page to find a guide best suited to your situation! I can link that for you here: [RV Guides and Resources](https://uniquecampingmarine.com/pages/rv-guides-resources) If you have any other questions or need some specific guidance, feel free to give us a holler at support@uniquemm.com! We're always happy to help in any way we can! :) Thank you again for reaching out and happy camping!
How many gallons of waste is one pod able to treat: Hi Ken, thank you for reaching out! One pod is generally used to treat a 40 gallon tank. If you have anything smaller, this single pod would generally be completely fine as well. For larger tanks, you can double up on pods if need be! A 120 gallon tank, for example, would be almost 3x as big as the 40 gallon tank so we would recommend using 3 pods instead of 1! I would also urge you, if you haven’t done it already, to read our guide, [The Unique Method](https://uniquecampingmarine.com/pages/the-unique-method). This process will virtually eliminate odors, clogs, and sensor issues! I hope this helps but feel free to reach out to us directly at support@uniquemm.com if you have more questions or need further guidance! We're always happy to help! Happy camping! :)
How do you specifically use this product ?: Using RV Digest-It is extremely easy and SUPER successful if you use it following The Unique Method. This guide will walk you through the steps to make sure RV Digest-It exceeds all of your expectations - and that your RV is free from odors, clogs, and misreading sensors! https://uniquecampingmarine.com/pages/the-unique-method