Thetford Grey Water Fresh Concentrated

✅ What It Is & How It Works

• Purpose: Designed for use in grey water tanks (from sinks, showers, etc.) in caravans, motorhomes, and boats. It helps prevent unpleasant odours and keeps the tank and pipework fresh and clean.

• Benefits:

  • Minimises deposit formation in tank and pipes.

  • Ensures odour-free discharge and prevents smells from entering the living area.

🧪 Usage Instructions

• After emptying the grey water tank, add the recommended dose (typically 80–100 ml) via the sink or shower drain and flush with water.

• One treatment lasts about 5–7 days, depending on the tank size and temperature .

🗣️ Tips from Fellow Camper Users

From RV and van-living communities, here’s what folks recommend:

"Every time I empty it, I add a small amount of Elsan Tank Fresh disinfectant in my grey water tank to stop it going nasty." 

"Grey water can smell almost worse than black tank odors... use the suggested amount every time we drain our galley water tanks and don’t have a problem."

Top user advice:

• Treat the grey tank each time you empty it.

• If smells persist, consider adding a once‑over cleaning with tank cleaner (e.g. Duo Tank Cleaner) or an enzymatic cleaner between trips.

• Ensure your system seals are airtight and that traps or valves are functioning correctly to avoid reverse odour flow.

✅ Summary

🛍️ Recommendation

If you're looking for convenient, odor-preventing care for your grey water system, any of the above purchase options will serve well. Stick to the dosage schedule and pair with periodic deep cleans for best results.