Hi again,
Yup you're totally right, it would take several gallons if I used the fresh water tank as the source. I went out today but was unable to find a kit like the one from camping world. So I went to several stores to find parts to build one. So it's not exactly the same but similar. The issue is that it still doesn't work, doesn't seem to be enough suction...
So here what I did:
1) Cut the existing half inch pipe connecting the pump to the fresh water tank;
2) Installed a "T" joint with screw-able clamps between the two cut pipes because I was unable to find a "T" valve;
3) Installed a small piece of half inch pipe to the bottom of the "T" and attached a connector to a half inch PVC compact ball valve
4) Put another connector on the other side with a 30 inch pipe long enough to go into the anti-freeze container.
It's all connected put there doesn't seem to be enough pressure or suction to pull the anti-freeze when the pump is turned on... I turned on one of the faucets and still nothing. I think the problem may be that it's still connected to the empty fresh water tank which means I would have to install a valve going to the tank and close it while the one to the anti-freeze is open.
Anyways I'm running out of patience... The only reasons I didn't bring it to my local dealer to get it winterized is that it was quite the hassle getting it up my steep driveway for the winter (using spacers to jack it up) as the Gulfstream Visa is super low of the ground and I didn't want to go through the process to get it out again. Also, I'm pretty handy as I have a lot of experience in construction and thought I could handle this easily but I can say I'm no plumber...
Any ideas? I don't know how clear all of this is to you so if you're still willing to provide some insight I could send you pictures of what I've done if that would help.
Thanks again for your suggestions and help, it's much appreciated.
jean
simon