ATB has released a new Normal Size protein skimmer with an automatic collection cup cleaning system using a combination of freshwater and saltwater. Not too much information is available right at the moment but it appears the new ATB automatic pot cleaning system incorporates a squeegee system running off a 12VDC motor and the inside cleaning of the skimmer uses a small pump to feed the washdown system (ATB recommends an Aquabee 2001 or similar pump). The inside of the collection cup foam riser tube uses saltwater for cleaning but from what we can gather in the brief statement the company made, the wash down of the collection cup and lid uses the freshwater to conserve the amount of water taken out of the system. The freshwater supply could, in theory, be run off your automatic top off reservoir and shouldn’t impact it in a major way (plus you are saving taking saltwater out of the system and replenishing it with freshwater via the ATO). As we get more details on the exact specification and pricing we’ll be sure to pass it on.