This product has been put out in many different guises & colours by different manufacturers. I've seen it mainly as the Hako Homeclean in light lilac colour with lilac tinted dome. Taski used to call it the Aquamat 10 in Orange with a smokey brown coloured top. WAP did it in yellow & ALTO in Blue. In the main the dirty water goes into a hard plastic upper tank, but some brands use a membrane bag & others a sealed tank. Good luck with finding any parts you need!!