IMO, the only way the Remora is going to let any water go......... Is if it's broken! (See: cracked or smashed)
By design, it will allow all water, skimate and foam to be put right back in the tank if the collection cup is over filled. Trace amounts of foam will appear around the hole in the collection cup when the foam isn't turning into liquid fast enough. (By trace amounts, I mean not even enough to drip off of the lid.)
There is no possible way for this skimmer to leak onto the floor without actualy breaking the body of it. (Works very good for a hang on also.)
