https://robertwaters.eu/en/109-zloze-filtracyjne-zmiekczacza
Softener filter bed
filter bedsoftener
https://patents.google.com/patent/EP1962990B1/en
EP1962990B1 - A fabric filter with fluidised dust-bed, and a method of maintaining it - Google...
A fabric filter (1) has at least a first compartment (2) and a second compartment (4) . A hopper (42) is adapted for fluidisation of dust collected in the...
fabric filterfluidiseddustbedmethod