View Single Post
Unread 05/20/2005, 01:49 PM   #11
Registered Member
Join Date: Jan 2004
Location: ST Paul, MN
Posts: 154
I am no expert but I believe different types of DSB's work differently depending on grain size, depth, water flow and lighting. I may be wrong but I believe the denitrification is helped with the lack of lighting and high flow rate in this case. Most fuges and other DSB are lit. I do not know why this works but reading this and some of the other threads, leads me to make this guess.


walt13 is offline