According to the documentation I have for the DLJ meters, which comes from the website provided, they can be installed horizontal or vertical. I have mine plumbed from the outlet of my sap pump in my heated room straight up and out to the outdoor tanks. I used it for the first time saturday night and it is working well. When funds allow I will get a larger one to plumb in prior to the RO.
It is looking like our season is going to get going this Wednesday.![]()