The reason for the bypass is to save six gallons of antifreeze (in some cases it's 10 gallons) and also to make getting the RV ready for use next spring easier by not needing to flush out the water heater to get rid of the antifreeze taste in the water system. Less antifreeze means easier clean up and more economical winterizing. I use 1.5 gallons to winterize my 34 foot RV.
* This post was
edited 11/10/09 05:14pm by skipnchar *
2004 F-250 SCREW Long Bed (new)
OR 2004 F-150 HD (85,000 towing miles) Rockwood 8314SS 34' travel trailer
We have enough YOUTH...how about a fountain of SMART
Remember after turning bypass the presure may still be in the hot water tank. That's released by opening the top presure release valve before taking the bottom plug, or heat rod out and letting the water out. Presure remains because there is a non reversing valve on the water going into the hot water tank. Be carefull as you can get burnt if the water is hot, and stand back when opening the presure release valve. After water is all out of tank reinstall the bottom plug or the heat rod and tighten. Close the to presure release valve too to keep cridders out. When refilling in spring, flush the entire system before opening the bypass valve, then open the presure release valve and turn water on, and it will fill from the bottom up, and when it starts coming out the top presure release valve then close it. Don't forget to close off you ice maker if you have on, or you will get antifreeze in the ice maker. You do that by lifting the ice cibe sensor arm up, which stops flow of water and ice making.
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