Ha! so Mr Childers...since you're writing a whole "series of Insights into Koi Pond Design" you must have sat back through this Thread and just smiled and grinned all the way! Sorry, did not make the connection but now that I know...

Good article and keem em comming! See even in South Africa you've got some good fans! I'm looking forward to the next one! Love th mag too. I get them all and this is my favorite!
THe other article is by Joseph Cuny:Flow rates through filters reviewed. some time ago I posted my confusing about the original article by Spike Cover stating my confusion after what he wrote...guess I was not the only confused one out there:
Ammonia question