If we are talking about a white disc, then I can easily see down 4-5 feet. I was talking about seeing pebbles and fish on the bottom. A 3-inch white disc is visible at 4 foot, barely at 5, but visible none the less. I do not know of this test you speak of.
Is that good or bad?
I do know my wife and I like the clear water. And the fish are doing fine.
Last edited by missouridave; 05/11/11 03:17 PM.
