How much and often should I use in our tank?

I follow the directions. I place about a tablespoon into the tank ,just after flushing,with use every day. If you have a clog, wait till the temperature is warm ,and empty ( the tank outlet must be closed) I leave it for as long as needed depending on the clog. I used an old wire hanger to agitate the tank to help move the contents and enable to penetrate the contents , and digest the clogs. Be patient with the clogs, but use often and you will not have problems.

Will this clean out the sewer drain when toilet paper gets stuck in there?

it will help desolve some...but it will not do the complete job of opening it up.....do NOT leave that the drain line open all the time!. Keep it closed till the tank needs emptying. The water and chemicals you have put in, keeps the paper etc soft and will not get hard and block your lines..

Can this be used in home septic systems?

It says on the bottle, specially designed to dissolve tissue in holding tanks. It is granular when I squeeze the bottle from the outside. I dont think it would work for a septic system. No where on the bottle does it say that is a use for the product.

Does it work with the blue stuff? If not, do you have to rinse the tank until it’s all clear? Then how long does it have to sit? Can we use tank?

I use use it along with the blue stuff. Turns the tissue into liquid. Dump your tank as you normally would and add again.

Thetford Rv Tissue Digester 19 Oz Thetford 15844

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

22306CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Description

🌊 Keep your tanks flowing and your adventures going!

CLOG BUSTING POWER - Specially formulated to dissolve tissue build-up and keep your drain lines flowing freely.
BUILD UP PREVENTION - Prevents stubborn residue on tank walls and drain lines, extending system life.
ECO FRIENDLY FORMULA - 100% biodegradable and safe for all waste treatment systems—clean with a conscience.
VERSATILE RELIABLE - Perfect for RVs and boats, ensuring hassle-free maintenance wherever you roam.
UNIVERSAL TANK COMPATIBILITY - Effortlessly cleans both black and grey water tanks for ultimate convenience.

Thetford RV Tissue Digester is a 19 oz biodegradable liquid designed to dissolve tissue build-up and prevent clogs in black and grey water tanks of RVs and boats. It maintains clean drain lines, prevents residue build-up on tank walls, and is safe for all waste treatment systems, making it an essential maintenance product for mobile living.

Specifications

ASIN	B000GPO6FO
Best Sellers Rank	#107,852 in Automotive ( See Top 100 in Automotive ) #68 in RV Sewer Chemicals & Cleaners
Brand	Thetford
Customer Reviews	4.4 4.4 out of 5 stars (502)
Date First Available	June 15, 2004
Item Weight	1.18 pounds
Item model number	15844
Manufacturer	Thetford
Manufacturer Part Number	15844
Model	RV/ Boat Tissue Digester for Black and Grey Holding Tanks
Position	Outside
Product Dimensions	1.8 x 1.19 x 7 inches
Special Features	Biodegradable

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.