Thank you all for the help. I managed to find the water pump and figured out how to bypass the hot water pump, Jayco had provided a clear tube to suck in the antifreeze. I drained the hot water tank first, then blew compressed air thro'the whole water system and then bypassing the hot water system, ran the water pump till I saw pink antifreeze come out thro' the faucets, bathroom taps and toilet flush. All of this cost me $16.00 ($14.00 for the antifreeze) & 2hrs since I was doing it very carefully as it was my first time doing this procedure and also my trailer was brand new. Hopefully I have done everything right and we have a great camping season in 2013.