Solbio Holding Tank Treatment - 40 doses

Solbio Original is the worldwide number one natural waste holding tank treatment for camping cassette toilets and RV waste tanks.

• Very powerful and made from 100% natural products
• Long-lasting. Great value.
• Suitable for all RV waste tanks and cassette toilets
• Gentle fragrance of pine and eucalyptus (no more harsh chemical smells!)
• Biodegrades waste and toilet paper so the tank can be emptied very easily
• Contains no toxic chemicals 
• Safe to empty into a septic tank. 
• Long-lasting pack - up to 40 doses
• Solbio Original keeps the whole waste system clean. No need to buy multiple products.
• Does not stain

Simple dosing instructions

How Solbio Works

Most RV tank treatments work by masking odors or killing bacteria. That might stop smells temporarily—but it also stops natural waste breakdown. Solbio takes a different approach. It activates the good bacteria already in your tank, helping them multiply rapidly to break down waste at the source. That means fewer odors, less buildup, and a cleaner system without harsh chemicals. No perfumes, no disinfectants, no guesswork—just a smarter, more effective way to keep your tank working as it should.