[A/S] Winterizing

["Bill Czygan" <billczygan@xxxxxxx>]

We're winterizing our 1970 Safari single axle rear bath. We've gotten 
some help from the list and are referring to our owners manual and 
also to a service manual for  1972. We have some questions about 
things that conflict. 
Water Supply System:
I assume that what we have is a demand system. 
First, It says in our owners manual that there are 3 valves to open 
under the galley sink. We find two but not the water tank drain valve 
that is supposed to be under the floor. Is it a white plastic device 
imbedded in the wall of the tank with a tube through the floor? How 
do you open it?
Also, I notice that all the instructions say first to turn the water 
pump switch to off (after opening faucets). I have an almost full 
water tank and if I turn the pump on it drains the tank (this is with 
the 2 valves under the sink in the open position). Is this a good way 
to drain the tank? Will it hurt the pump?
Where do you get the "Hansen Valve" (also called blow out plug) to 
connect a compressor to the water inlet hose? What CFM capacity air 
compressor is needed to blow out the water lines? I have a small 3 
gallon 2 to 4 CFM compressor. Will this do? Some say to open all the 
faucets to do this and others say one at a time. Which is correct? 
The instructions in the manuals don't mention pumping antifreeze 
throughout the water supply system. They say to expel water from the 
lines and fixtures and Water Heater with air pressure and then hand 
turn the disconnected water pump to clear it. Some helpful people 
have said to pump the system full of antifreeze. Which method is 
preferred? 
P.S. My water pump looks like it was added (It isn't even mounted, 
just laying on its side) and doesn't have a belt to hand turn. Would 
it hurt to use the switch for a moment to clear it of water after 
disconnecting the inlet and outlet? 
Instructions mention operating the toilet flushing valve. I assume 
this is the foot pedal? I don't get any water movement from doing 
this or from the shower head or toilet bowl hand spray. 
The consensus seems to be to NOT put any antifreeze in the fresh 
water tank. Just drain as completely as possible. 
Drainage System:
I've got some purple stuff (its actually called "Purple Stuff") the 
last owner used for the black water tank. It's a degreaser. Should I 
just leave the tank empty for the winter or use some of this or is 
there something else that should be used to overwinter?
There are some differences in what to do for traps. The 1972 service 
manual says not to use RV antifreeze but to put a cup of kerosene 
into the lavatory, sink and shower or tub drain traps. The owners 
manual for our 1970 Safari say to USE antifreeze in these same traps! 
Which is correct? 

Confused in Detroit,

Bill and Julie

1970 Safari

WBCCI #5129..........Wow! Just joined. What a nice bunch of people 
with overactive "friendliness" genes.