Indeed, you will need to disconnect it turning off any water supply to it and being careful (If you dont have a quick disconnect or valve in line) to open it over your sump or a pan, etc. I don't know the brand your speaking of, but basically, there will be a tube inside which should unscrew from either end. As for cleaning, wipe down with RO
water. NEVER use chemicals on it or in it. Mine had been in line for about a year and I never used it, but it was caked, and I mean caked in sand, mud, etc. It was pretty much useless. Took mine out since I don't use it, but cleaning is the same, only you'll want to reverse the process to reassenmble. I would check the mfg's web site, most have moved into the 20th century and post PDF files of the manuals..