Purchased one of these last saturday and I am not sure how I feel about it yet I'm looking for other peoples experience with them. So far all I have gotten it to do is bubble and not creat foam. Well shouldn't say it hasn't created foam I briefly had foam for around 5 minutes and that was it. Also this is constantly overflowing with the collection cup. I've been toying with the valve to find that perfect spot and no matter how low I have it set it still seems to overflow at some point. So any help or experience with this problem or skimmer would be great. I am thinking about returning this product in a week if it doesn't get its act together. Also I am new to saltwater so there could possibly be user error here.