Looking for suggestions before I install my SW mixing station. I would like to know your preferred way to do water changes from a mixing station without carrying a bucket. I can either install hard plumbing pipe to pump old water from my tank, using the return pump, and dumping it down a drain and have the pump on the mixing station pump fresh saltwater to the tank. The other way that I can think of is to install a Neptune DOS between the tank and the mixing station. I think both have there advantages. The hard plumbing would be nice because I can get a lot of water out of the tank faster than the DOS. The DOS would be more simple to use IMO. So to the ones that have done water changes this way or that way or both or someone has another idea feel free to share. much thanks