[A/S] Re: Parking A/S over the winter

["Maurice Riggins" <maurice.riggins@xxxxxxxxxxxxxxxx>]

The antifreeze didn't get into the tank!  These metal valves don't go 
into the tank... which as you state is unpressurized on the input of 
the pump.  The metal drain valves go to the pressurized water lines 
that come from the output of the pump... and supposedly they go to 
the lowest point in the pressurized cold and hot water lines, so if 
these metal drain valves are open ...AND... all the faucets, shower 
head, toilet valve, toilet spray nozzle valve are open so air can 
come in them to replace the water... all the water in all the 
pressurized lines theoretically will drain out these metal drains via 
gravity.  I'd definitely hold the shower head as high as it will go 
to make sure no water gets caught in a U loop... same with toilet and 
sink sprayer hoses.

Then you close the metal valves and use compressed air if you're 
going to, or start pumping antifreeze from the input of the pump 
until you see it running out each faucet, spray head, in the toilet, 
etc.  What you're doing with all this has nothing to do with the 
tanks.

Now... if you want to drain the tanks, pull up to the dump station 
and pull the curbside trailer wheels up on short blocks to make sure 
the tanks slope to the streetside.  Dump the black water tank, rinse 
it with a garden (not drinking) hose connected to the tank wash 
connection, give that plenty of time to drain, then close its valve 
and open the grey water valve and give it plenty of time to drain.

Pull to wherever you're going to drain the freshwater tank, and use 
the blocks on streetside wheels again.  Use the 1/4 turn plastic 
valve to drain the fresh water tank.

When emptying the tanks, I loosen the hitch spring bars so the front 
of the trailer can sag low, then raise the tongue jack way up slowly 
and let it back down again slowly to "rock" each tank fore and aft as 
I'm draining it to get as much water as possible to the drain.

All this may seem anal to some of the experienced owners here, but 
I'm being pretty cautious.

--
Maurice
WBCCI 5446