We hope its not widespread on this site. We only noticed it as the 2 pitches are brand new as we turned 20 grass pitches into hard standings during the winter & the Easter break was the 1st time they were used. They could've been parked anywhere. This post was started as 2 motorhomes drove off site with the drain taps open ignoring the motorhome service point. So that's 4 in 5 days. The majority do stop & drain off the grey at the correct point, we experienced some last season but this year it seems more prevalent. The next one I may stop in a mad panic with my arms waving & say '[HI]You've got a leak![/HI]
especially if its a fiat / peugeot or citroen the fuel filters seem to be prone to spontaneous leaks