Fenwicks Waste Pipe and Tank Cleaner 1L

The Fenwicks Waste Pipe & Tank Cleaner (1 L) is a high-performance cleaning solution tailored for the demanding needs of motorhome, caravan, and campervan waste systems. Engineered to clean grey and black water tanks, toilet cassettes, and drainage pipes, this cleaner combines powerful performance with ease of use for regular maintenance.

Superior Cleaning Formula
The highly concentrated formula effectively breaks down organic residue, eliminating stubborn "black bits," grease, and urine-scale build-up. Whether treating slow-draining pipes or foul-smelling waste tanks, users report noticeable results in just a few hours—“makes slow-running pipework clear again” and effectively clears blocked shower traps .

Freshens and Deodorises
Beyond cleaning, Fenwicks neutralises unpleasant odours that commonly plague waste systems. One user noted it “cleans the tank and makes it smell pleasant” after driving . Another observed a “nice, light fresh smell” in the waste system post-treatment .

Economical & Versatile Use
Recommended usage includes adding 100 ml to 5 L warm water for waste tanks or 50–100 ml neat for blocked pipes and shower traps . The product can also be diluted (50 ml in 450 ml water) for cleaning interior hard surfaces like sinks and worktops—and is food-safe and biodegradable.

User Satisfaction & Value
Boasting an impressive 4.8-star rating on e‑commerce platforms, many users call it “excellent value and very effective” . Outdoor reviewers awarded it a stellar 9.5/10, praising its quality, performance, and affordability—well above average in its category 

📝 Final Verdict

The Fenwicks Waste Pipe & Tank Cleaner is a must-have for leisure vehicle owners seeking a reliable, multi-functional cleaner. Its blend of strong cleaning action, odour elimination, and eco-friendly formulation makes it a top choice. Regular use ensures clear pipes, fresh tanks, and hygienic interiors, supporting a worry-free trip every time.