Bruce H Posted February 22, 2017 Report Share Posted February 22, 2017 Last fall I winterized the MH. I kept the old anode rod in until I would change it this spring. I made sure the bypass lever was in the correct position before winterizing it, also drained the hot water tank. Went out to change anode rod today. Pulled the old one out and water & antifreeze came pouring out.Can't figure out what I did wrong. Checked the lever again, still in the bypass position. So any sugestions as to what I might have done wrong? Did not have this problem last winter. Next question, what should I use to flush out the hot water tank to get rid of the antifreeze residue? Thanks in advance. Link to comment Share on other sites More sharing options...
Dutch_12078 Posted February 22, 2017 Report Share Posted February 22, 2017 Lots of water will flush out the remaining harmless anti-freeze. If your bypass is a single valve setup that uses a check valve on the hot outlet to prevent water from back feeding into the tank, I suspect that's where the problem is. Those check valves are a well known failure item when mineral buildup causes them to stick. Most commonly, they stick closed, but one sticking open is not unheard of. Dutch 2001 GBM Landau 34' Class A F-53 Chassis, Triton V10, TST TPMS 2011 Toyota RAV4 4WD/Remco pump ReadyBrute Elite tow bar/brake system Link to comment Share on other sites More sharing options...
Kirk W Posted February 23, 2017 Report Share Posted February 23, 2017 My first thoughts on the problems are exactly as Dutch suggests. If it has one of the plastic check valves, I'd replace it with on of brass, available from Amazon. Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Bruce H Posted February 23, 2017 Author Report Share Posted February 23, 2017 Thanks guys for the reply. Going to change the valve this weekend. That's what I like about this forum, always helpful advice. Link to comment Share on other sites More sharing options...
wildmandmc Posted February 24, 2017 Report Share Posted February 24, 2017 Bruce, ya right, this site is full of good ppl. always someone that has either had that problem, worked in that field. An plenty of good how to do this .... Was on another rv site. prior. This one is top of list. have not even gone back to that other one. 2000 Itasca Horizon DP (Got Total During Irma). Vice President of Charlotte County Defenders LE MC http://charlotte.defenderslemc.com/ Link to comment Share on other sites More sharing options...
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