[VACList] Low tech winter water flush

[jon fitz <fitzjo1@xxxxxxxxx>]

Well, this is probably too late for most climes this
year, but I did stumble into a convenient low-tech
method for flushing my water lines.

Start by opening all the drain valves (including the
hot water tank)and faucets .  Cycle the pump a few
times and open the filter(s).  Lower the jack as far
as possible.  Leave for a while.  Raise the jack as
far as possible.  Leave for a while.  By now, the
remaining water in the supply lines should be at the
rear of the unit.

Remove the check valve on the city water inlet. 
Surprised?  It's the lowest point and there's water
sitting above the check valve.  You just saved
yourself a repair on the short section of tubing that
leads up into the belly.  Put the check valve back and
attach your handy tire valve fitting.  

Open the shut-off valves for the water heater (if you
have them).  Close all the drain valves, faucets and
the fill valve between the storage tank and city water
(if you have one). Attach your foot pump to the tire
valve.  Pump to about 30 pounds.  Yes, it takes a
while, but you don't have to hitch up or own a
compressor.  

Now, one at a time, open the two rear drain valves. 
In theory, the valves are at the lowest point (other
than the inlet).  In practice, there's probably a
lower point somewhere under the battery (at least in a
68 there is) that's between the hot water tank and the
drain valves.  All that air stored up in the hot water
tank will come rushing out to clear the last bits of
water.  If you're worried about a low point on the
other side of the rear drain valves, repeat this
procedure with the water heater shutoffs *closed*. 
Then, most of the accumulated air will be on the other
side.

Don't forget the anti-freeze for the drain lines.

Jon in SC
68 Overlander