Getting to that point that I need to get some of the final parts.  The water pump,  I have read so many different reviews and product discriptions.  Does anyone have have suggestions on what to or what not to use.  I just have a small weekender.  I have a toilet, shower and a sink.  From the fresh H2O tank to the furthest fixture is only 10 feet down the long wall and accross the back slant.  I don't know that I will need to have a ton of pressure, just enough to knock the dust off in the shower after a long ride or hunt.

I like this brand. Very reliable, no maintenance, works perfectly. One of my trailers is now eleven years old and has the original pump.

http://legacy.shurflo.com/pages/rv/rv_categories/potable_water/potableWaterPumps.html