HTH said:
I am sure the guys at Koi Pen have a great BD setup for Koi but it sounds a bit like a whirlpool. Maggie wants goldfish, and plants, most everyone wants water lilies. The lilies and many types of goldfish do not like current.
It seems to me this engine is on the wrong track.
Not sure what you are talking about? I have comet goldfish, fantails, blackmoor, minnows, frogs, tadpoles that turned into frog, turtles and lots of plants, none of them are effected by the current or my bottom drain. If you are insinuating that you can't have those things and have a bottom drain in your pond then you are on the wrong track.
Maggie asked the opinion of anybody who used bottom drains, most people in this forum don't have them, that is why I suggested she check in over at the koiphen forum, since many of the people over there have them and recommend them, an yes many of the people over there have lovely water gardens with plants and goldfish too.
I know from previous posts that waterbug cleaned ponds professionally (or at least earned and income at it), he also has a web page about cleaning methods and tools, like pond vacuums that he designed and sold, if that doesn't make him and "expert" I don't know what does???
The wink was to indicate that if Maggies gets talked out of a bottom drain she'll definitely be needing all those tools and techniques, and maybe some of those services. I've went that route before in my old pond, never again, no thanks, there's an easier way. By the time you invest in pond vacuum, pool net, hip waders you could have easily plumbed in a bottom drain and let it do the work for you.
HTH, Here's a picture of my pond with a bottom drain, do the plants appear to be struggling because of the current?