[koiczar]

Quote: Originally Posted by Steve Nguyen Hi Mike, Wow!! I didn't know Sequence Primer and Wave Dragon are also whisperly quiet. I am going to do some comparisions on electricity usage and pump rate to see what's the differences. there are prices to consider too. Good point about the swimming pool in-wall skimmer. I didn't think of the flow rate. it definitely something I need to think thoroughly before installing one. regarding matala rolls in settling tank, I kind of suspecting some solids might pass through black matala. that's why I was planning to have a green matala roll on top of the black matala roll but now I can change them to blue. thank you for sharing the experience. I do have a question on your future plan of changing from current setup to 1 blue and 1 gray rolls. would that clog up? thanks for the comments/feedbacks! Steve

Steve

As far as using blue and grey rolls in the bio, I don't feel they will clog if I use the Ultima first, then settlement/mechanical with a touch of bio sprinkled in, before it goes to the bio tank. I'm banking on the water being very clear when entering the bio tank. Also, I'm finding out that trying to get the 37" grey rolls is next to impossible. Both supplier and distributor are out of stock - so, I either buy two smaller rolls and combine them or just use two blue rolls. I don't think I will lose that much surface area.

Mike