I will definitely call Dennis tomorrow. I talked to him the other day and have nothing but good things to say about him and the shop. He actually talked me out of buying a particular product from him because it would not suit my needs!!! Not many places run their shop like that, looks out for the best interests of the customer. I like that, and it has made me a LONG term customer...
Tomorrow, I am going to swap the filters and see what happens. After that, time to drop the tank. Again...