sfpcservice wrote:
If it's a long term situation you might consider a maceration pump. They make pumps that mate directly to an RV sewer drain, and then I think they pump through a garden hose to the final destination.
I agree whole heartedly a 3" sewer hose over 100' long without any slope and you need to consider shovels for the clean up! I had a unit that used water to pump the "stuff" into a standard 5/8" water hose! Connected to standard sewer hose outlet, and worked great! Downside was you need to have two dedicated hoses to operate, do not mix them up with drinking hose!