First time visit to Moreton in Marsh site. We had only just finished setting up on our pitch when I noticed a muddy stream of water meandering its way onto our pitch from the water point across the roadway. I then watched for over half an hour as a lady washed two large dogs, two pedal cycles and half a dozen pairs of muddy boots, she has obviously done this before and quite used to doing this as she brought her own hose and marigold gloves to undertake this mammoth task. She connected her own hose to the drinking water tap and proceeded to wash all her muddy items to the detriment of other campers trying to fill their aqua rolls and filling my pitch with a stream of muddy water. I spoke to a warden in the toilet block nearby and asked if she had seen what was taking place, she stated that she had watched her for several minutes also, I asked if this was normal procedure and allowed to take place on a club site. I was extremely surprised by her lack of action or even challenging the person concerned, bearing in mind the inconvenience that this persons actions was causing to other members. I will contact the office being her only response, which I found totally unacceptable. My wife and I visited the reception later that evening to clarify the situation and ask if the person concerned had been spoken to regarding her actions. Basically told that it was acceptable for someone to wash all their muddy items from the drinking water tap, to flood other members pitches and stop members using the tap for what it was designed for, ie filling their respective water containers. I had travelled nearly 150 miles to meet up with our friends who are fellow members to have my pitch filled with muddy water by a very inconsiderate camper and an extreme lack of action by a Caravan Club warden. This lack of action ruined our weekend. Come on Caravan Club sort this out as its lowering the standard of our club sites and maybe some training for the wardens concerned would not go amiss.