NOTE TO MODERATORS:

Could you please move the posts from #14 (somewhat arbirtrary, but I think that's a decent break) on to this thread I started in The China Shop? We are getting more technical than we should be for the general forum, but I do want to continue the discussion in a "safe" place that won't scare off newbies. Any net results, simple rules, or other useful information will continue to be posted in this thread, but the mathematics of fluid dynamics and statics and pump efficiencies will be kept out of this thread and placed in The China Shop.

Thanks,
Richard