Originally Posted by MOKID
My Sunline does not have the water pump bypass to hook into the Anti Freeze Jug so I am going to use a hand pump to pump the Anti Freeze into the City Water Valve. My question is this: Does the water pump need to be winterized if I use the hand pump and city intake valve.
If you hand pump pink stuff into the city water hookup, you can't be sure it gets upstream into the pump especially if the city water hookup is any distance from the pump. I'd be uncomfortable with that method. Pumping the antifreeze through the pump is the surest way to protect it.
Here's what I do:
First, I drain the fresh water tank as completely as possible.
My fresh water tank is internal so I can get at under under the couch and lift the end opposite the drain fitting (just an inch or so) and get the last bit of water out of the tank. I then remove the tank side hose from the pump and swing it up just a bit.
I found that the tube for a hand-held shower head has the same size fitting on each end as the inlet fitting on my pump. I got an old one and cut it in half. Then I connect that hose to the pump and insert the other end in the jug of pink stuff.
It'll nicely suck the pink stuff into the system and it only takes a gallon and a bit to do the whole TT including the drains.
If you have an underslung tank, but can get at the pump, the theory is still the same. Disconnect the tank side hose from the pump, substitute the temporary suction hose and have at it.
When you're done, give a blast of air to the hose from the tank to the pump to push any remaining water back into the fresh water tank.
In the spring, reconnect the tank side hose, fill the tank with water and flush away the pink stuff.
If you don;t have an old shower hose sitting around, you could borrow the one from the TT's shower. Don't cut it, just use the whole thing. The other end will fit into the jug of antifreeze.