Thetford Grey Water Fresh 0.8L – Caravan & Motorhome Grey Tank Treatment
 
Keep your caravan or motorhome fresh, hygienic, and odour-free with Thetford Grey Water Fresh – the easy way to maintain your grey water tank while touring.
Designed specifically for use in sinks, showers, and washbasins, this powerful formula prevents unpleasant smells, reduces grease build-up, and keeps your grey water system running smoothly.
 
Perfect for life on the road, it’s a must-have for any camper van, caravan, or motorhome setup.
 
🚐 Why You Need It
Grey water tanks can quickly develop unpleasant odours and build-up from soap, grease, and food waste. Thetford Grey Water Fresh actively works to:
 
Prevent bad smells before they start
Reduce deposits inside your tank
Keep drains and pipes fresh
Improve overall hygiene while travelling
 
⭐ Key Features
Eliminates unpleasant grey water odours
Reduces grease and residue build-up
Keeps drains and tanks fresh
Easy-to-use liquid formula
Suitable for caravans, motorhomes & campervans
0.8L concentrated bottle
 
🧼 Pro Tip 
Want to keep your entire water system in top condition?
 
👉 Read our full guide here:
How to Effectively Clean and Maintain Your Caravan Grey Water Tank (2026 Guide)
 
This guide shows you:
How often to clean your grey tank
Common mistakes to avoid
Step-by-step cleaning routine
Best products to use
 
🏕️ Why Buy From IDS Camping & Leisure
At IDS Camping & Leisure, we only stock products that make touring easier, cleaner, and more enjoyable — so you can focus on relaxing, not maintenance.
 
❓ FAQs 
What does Grey Water Fresh do?
It prevents bad smells and build-up in your grey water tank, keeping your system fresh and hygienic.
 
How often should I use it?
Use regularly during trips, especially after emptying your grey tank.
 
Can I use this in a motorhome and caravan?
Yes — it’s suitable for caravans, motorhomes, and campervans.
 
Does it clean the tank as well?
It helps prevent build-up and maintain cleanliness, but for deep cleaning, combine with a full tank clean routine.
 
Will it stop bad smells completely?
Yes — when used correctly, it significantly reduces or eliminates odours.