There is a large compartment just in front of the passenger side rear wheel. There are 2 spring clips that have cotter pins through them that you need to open that are along the bottom edge of the door. Remove the cotter pins and open the spring clips. You will then be able to open the door. Be sure to have something to prop the door open because there are no hydraulic lifts to hold it open. In that compartment you will see the water pump and fittings that you can open to drain the water tank.
Hope this helps.
Tom
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Tom and Margaret
2014 Berkshire 390bh-60
Linear Mode
