Flushing FW tank on 2015 Leprechaun 319dsf
I sympathize with you. I have a similar unit. There is a drain hose, blue in color, with a pet cock in your 2nd from rear compartment. If you open it, nothing happens but if you activate your water pump, it will pump it out. I took this up with my service adviser and told him what a stupid setup. He said it should drain from the low point drains. It does not. This is my 8th RV so I am not new to draining, winterizing etc. It seems they took the easy way out instead of attaching a hose to the excisting place on the water tank and going down. It is crowded there but it could be done.
By the way, it does not drain to my satisfaction so I tilt my motorhome so that you get a better drain. Dumb set up.