Camco Rhino Camper/RV Sewage Macerator Pump Kit - Features Run Dry Protection and High Temp Protection - Compatible w/4”, 3.5” & 3” Sewer Outlets - Designed w/Self-Priming 12 Volt DC Motor (39040)

There are web sites and apps that help you locate dump stations, many places have free public dump stations, we have one at a city park in our town 2 miles from my house that I use everytime I get home from a trip. I have also seen free dump stations in my travels at some highway rest areas, near popular fishing lakes, etc. There is also the option of getting a portable macerator pump, like the Sani-Con Tank Buddy I have (discontinued model) that has a macerator pump that connects to your dump valve that then pumps through a hose that can discharge into a toilet or a sewer clean out fitting up to 75 feet away (with long enough hose). Here is a newer Rhino branded model https://www.amazon.com/Camco-Rhino-Camper-Macerator-System/dp/B0CTD28BFW there are also a LOT of no name import options for cheaper that have came on the market in the last couple of years. My Sani-Con Tank Buddy from 10+ years ago looks like a kit someone built out of off the shelf parts by comparison.