I'm considering using a packaged membrane wastewater treatment system for a 50,000 gpd application at a park/campground. I have designed several WWTP's and a membrane water plant, but not wastewater. Any tips to offer, or things to look out for?
I'd recommend that you pick a pump brand based on what is readily available in the area. Grinder pumps break down, and its probably more important to find one that can be readily serviced than to find the most efficient one. This especially applies to a simplex station.