We are in the process of buying a house that has a cesspool that has apparently never been emptied since it was built in 1906! They say that the solid waste biodegrades and the liquid runs off. I can't find anything online that confirms that this type of system exists and I wanted to know if anyone else had experience with this. We would love to have an expert come and take a look at it but don't want to end up with a cowboy who says that it has to be emptied for the sake of getting money to do so. Any advice gratefully received! The house is in Surrey if that matters...