Bought the new style Heos water filler cap (for vented or unvented tanks) from these people and even with P&P added (£3.95) was the cheapest I could find. Prompt and efficient to deal with too.
http://www.campervanstuff.com/…d_prd=1410
No more standing around, holding the hose, regulating the water pressure, splash backs etc whilst the 100+ litre water tank gets filled!
http://www.campervanstuff.com/…d_prd=1410
No more standing around, holding the hose, regulating the water pressure, splash backs etc whilst the 100+ litre water tank gets filled!