Thanks all for the replies.
My basement only has a sanitary sewer line - no storm drains. The only storm drains are the ones that collect water from the roof and that I mistakenly though were sewer clean-outs.
The sanitary sewer line runs from the front of the house, all along the basement wall and almost to that window in the picture. It's 4" pipe that collects waste from the whole house along the way. It has a 4" cap at the end of the run. I'm going to remove it and put a "T" of some kind there (more likely a "Y") for the Sewer Solution. Yes it will be an airtight connection.
Water pressure is really good so it sounds like it will work for me. I have 1" plastic underground sprinkler line with PVC adapters on each end. I bought the sprinkler line because it's flexible. I plan to put a threaded fitting at the "T" I will install so I can remove the line and cap it when not in use.
