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A buddy of mine suggested i look up something he's seen done on other mid 80's trucks (not sure if its been done on toyota motorhome). I have a 89 itasca with dual fuel tanks. I have to pull over, open lids and flip switches and it transfers gas in rear backup tank to front tank in case of emergency. I was wondering if there was a way to bypass the pump and just have the truck pull fuel from both tanks at the same time? I'm not even sure if this is possible. Thanks for any input.

Hello & thanks for looking at my post. I have a 1989 Toyota Sunrader & am hoping to find links for info re: fresh, grey & black water tank maintenance. I've seen some info out there, but without pics it's hard to know how & if it applies to my Sunny. I only see/know of 2 drain outlets, one under my rear bumper which I assume is the grey water tank, and one on the driver side under my bathroom which I'm assuming is the black water tank. When it comes time for "winterizing" I am unclear how to make sure all of the lines are completely void of any remaining water. Also, I'm not even sure how to fill my fresh water tank - I thought a water hose would just screw onto the potable water inlet but it doesn't look like it will attach properly ... am I supposed to use a funnel? Or do I buy a water pressure regulator ($8 at Walmart) as I saw in another post & does that attach to the opening? And I'm unclear what the opening to the left of it is with a wire mesh cover over it, which I can't get off -- is it a vent? It will turn in both directions but it doesn't unscrew. How do/should I clean it? Also, is it true that white vinegar (1/4 cup per 5 gallons?) is an equally effective way to sanitize your FW system? If so I think I'd prefer that over the bleach method, given it would probably have less of a residual effect after flushing out. I've included pics of my fresh water inlet (there's a little tiny hole above it & what looks like maybe a rubber plug that can fit inside the tiny hole,attached to the cap cover -- what's that for?), the 2 drains I can see, my water tank/system inside under passenger back bench, the water heater (how do I drain that?), & water heater switch. As far as the water heater, that operates on propane only correct? And is turned on/off by the electric switch under the kitchen sink -- it's electric-ignited via 12V auxillary battery, not pilot light yes? Ok that was a lot of rambling & not well-organized, my apologies. I appreciate all who have responded to my previous questions and I thank you for your patience. This is all totally new to me. Thanks, Todd