Interesting stories on the hose failures from HWH. I don't agree on the one point. I'll repeat a couple key points from previous posts:
1)The first set of hoses, that came on the coach failed shortly after purchasing our coach new (about 5 months and 7,000 miles).
2)The second set of hoses, obtained by the dealer from HWH, since WRV did not have them in stock, and installed in the same place, failed a few months later.
3)Our third set of hoses, purchased from HWH, by their certified technician, and installed by him in Palm Springs in the winter, failed after installing the heat insulation recommended by HWH and WRV, and routing the hoses away from the radiator.
2)The fourth set of hoses, obtained by the same HWH technician, from HWH, failed after cycling the slide in an out twice a day in our RV park in Palm Springs, in winter, for 7 days without turning the engine on and creating any heat.
3)The fifth set of hoses, obtained by he same HWH technician from HWH, had different colored fittings and have been on the coach over two years and 20,000+ miles with no problems.
So if heat wrap and rerouting didn't solve the problem, and cycling the slide in and out for a week without the engine turned on, and numerous discussions between HWH's certified technician installing the hoses and their technical people (which I was privy to) didn't solve the problem until we got hoses from the with different fittings, who would you believe if you were in my shoes?
Former Owner, 2006 36MDDS
2010 Arctic Fox 22GK Travel Trailer
2007 Toyota Tundra