An option you could use if you do route PVC or a hose through the flooring. You stated some concerns that others might not like something dripping from underneath your trailer. Consider finding a plain 5 gallon bucket and then spray painting the words "Clean Water" or something similar on the sides of the bucket... white bucket with black paint. It could then spill over and hopefully no one will complain about it. You could even periodically take the bucket and water some plants with it.
Just a thought but hopefully doing the above would head-off a majority of negative thoughts/complaints about something dripping from underneath your trailer.