I was having a great laugh while reading your post "Dale". I will take it as a compliment of this topic rather. So many threat has raised this topic somehow or rather but it is always an interesting topic to contribute ideas, new commments and information from hobbyist based on the past experienced.
"Anyone a charcoal expert? I guess I'd need a flow rate of 25 GPH and a large enough charcoal filter to obtain the necessary dwell time to be effective. They use chloramine in my area if that makes any difference" posted by gcuss.
Have anyone heard about Bamboo's charcoal use and how does it benefit to koi pond?