there should be several skimmers about. i remember rows of them going through the great dorset sale in the mid 90’s, think they were ex bristol water works. there was also at least half a dozen sold out of bournmouth waterworks in the late 90’s, plus about ten tonne of spares, i remember having first refusal, but it was too big a deal for me in those days, and as i only had a 3.5 ton bedford that did 18 to the gallon, and being from norfolk, it was never going to be economical or practical