Well, no. That's your assumption. I'm trying to help you do the preliminary research you should have done before starting this project. Almost all blue water yachts 20 meters and more in length have both water treatment and waste treatment on board. Many recycle. Why 20 meters? It's comparable in size to a 4 bedroom house. The discharge requirements for these yachts must meet international standards, which are much stricter than most American waste treatment facilities. Use a little insight, that 130,000$ you want to spend, and get yourself one of each (marine water treatment, marine waste treatment.) and you get the added benefit of modular construction, streamlined maintenance, parts availability, and manufacturer support.