Does anyone have an ultrasonic cleaner that could advise? We have some budget left to possibly get one, and I'm wondering what sizes/capacity people would recommend shooting for. Also noticing a very large price and capacity disparity between the usual suppliers and what is available on Amazon. Typical 3Ltr is going for £500 on the likes of Breckland and Philip Harris, but a 10Ltr one is available on Amazon for £109. I'm unsure what to go with.