Zip HydroTap Clean

[@johnkim3573]

Hi, our hotel rooms are using these gorgeous units. As we press the tap button, below units(CO2 tank, control box, etc.) make something operating noise like motor rotation sound. I wonder if is this ok same noise for several second even without press the tap button? Normally in night time this sound makes guest somewhat irritating. Is this the sound to self cleaning intermittently? Also where can I download the user manual for this item, please let me know. Thanks.

[@The_Official_Baxendale]

Adding a cleaner product on a new machine looks utterly wasteful or is the manufacture quality that bad 🤔