I do it two ways.. Just now I'm here for an extended stay.. So I use my "Winter" hose, this hose is a standard white hose likly from Wal-mart or Camping-World (Frankly it's old enough I do not remember which) possibly Meijer's in Michigan. but fancy duct tapeed to it is a string of standard incandascent rope lights from Big Lots.. These are plugged into an outlet sold at Farm supply stores for tank heaters or at Home Improvement stores for eves heaters that turns on between freezing and 35 and turns off between 40 and 45. (i have two of these one from each source above).
When the mercury goes down,,,, the hose lights up
on the far end (Park end) of the hose is a 100 watt lamp, this is under a box, around the park's part of the plumbing.. Keeps things liquid to aroudn 20 degrees.
But where I NORMALLY park in the winter for chemical reasons (Too Much Bleach in the water) I fill the on-board and pump... In the 2 week park I may stay hooked up, but in the week out park I just use what I put in at the 2 week membership park.
Also the membership park has measured over 100 PSI, so I use a regulator.
