My 1997 Dynasty takes 11.5 gallons of rv antifreeze. Just took care of it last week. I choose the antifreeze over just blowing the system out. I feel it keeps the gaskets, fittings and tubing from shinking and it keeps the seals lubricated as well. I also feel it prevents rust in the hot water heater.
You can email me and I could give you some heads up on quite a bit of "what to watch out for's" and some fixes as well for that coach of yours.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> When I get home and level it will ALL the water drain from the fresh water tank when I open the valve? </div></BLOCKQUOTE>
You need to open three valves, one in the service compartment area and two in the area that is next to the main water manifold in the lower bay (don't forget to dump those two big water filters also in the lower compartment). Do this when your no less than 5 miles from your house which will be your final destination prior to winterizing. Prior to this proceedure, make sure you open your kitchen and shower knobs. This releases the air and allows it to drain out more efectively. Even with this all done, you still will have water in the lines to the ice maker and washer/dryer, this is why you must either blow it out real soon after or get the rv antifreeze throughout the entire system, or you can just pray for warm days.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> I suspect that repriming the fuel system is as much of a pain as my diesel Jeep is so I will remember that for sure.
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On one of these coaches, you wouldn't want to wish it on your worst enemy,soo don't forget to keep fuel in it.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> The tip on the blow out adapter is good too, Ihave one already for the GMC best thing since sliced bread for the water system. </div></BLOCKQUOTE>
Your coach has two air chucks and an on board compressor as well that usually has 110-120psi at all times. Get yourself a 50ft air hose in home depot and some fittings that will hook into the chuck. Use the coaches air to blow the system out if need be.