I've never seen a trailer that didn't have a provision for draining the fresh water tank...not to say that there's never been one made, but, if there has been, I've not run across it
FunFinder (CruiserRV) doesn't use a big valve and it isn't readily visible unless you are laying on your back underneath the trailer where you can see the bottom of the tank clearly. It is a small petcock type valve made of the same color and type of plastic that the tank is made of and can be difficult to locate, but, it should be there.
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