Welcome to iRV2. We are glad you joined us. I am sorry I can't help you with your question. Hopefully someone will jump in to answer your question. If not you may want to post your question in the National RV Owner's Forum HERE
I believe you will enjoy this site as much as you enjoy your Dolphin. There is a wealth of info available here just by asking. Post often and share your RV adventures with us.
Don & Bev Morgan Weyauwega WI, 05 Itasca Horizon 40KD, 400 HP Cummins, Adopted by a great couple, Toad 07 Saturn Vue AWD, Air Force One, TST 510 TPMS, Mayor of Weyauwega 2007 - 2013, Waupaca Co Board Supervisor 2010 - 2014