Sorry i've been gone but I had my best week ever working 12 hr days. Too tired to even invoice till today. Anyways I rinsed my tank out really well (its kinda hard on this unit) and about a basketball sized pile of crb removal piled up and it did a lot better. I don't see how that affected it because my filter wasn't that bad. I also noticed the closer the water is to the filter the higher the hgs go