We have a Hymer motorhome, bought new in 2013 and for as long as we can remember it has been tricky to fill the fresh water tank as it tended to cough water back out of the inlet if we tried to fill it too quickly. Finally, last week it became so bad that it was obvious something was blocking the pipe. By removing a small panel under one of the beds, my hubby just about manged to see the bottom of the filler pipe using a torch and inspection mirror through a hole in the double floor area. He could see something yellow blocking the pipe close to where it enters the tank which is fitted between the two floors. Unfortunately, in order to disconnect the pipe he had to enlarge the hole to gain access. Would you believe it, a hosepipe nozzle was the culprit and it isn’t one we have ever used. We can only think a dealer must have used a hose during one of the habitation checks we were obliged to have whilst the van was still under warranty, lost the nozzle and said nothing about it. Lovely! The photos tell the story and, just to be clear, hubby does intend to improve the shape and finish of the new hole to blend it in with the original. It will be hidden anyway once the panel above it is put back in place.