Can you confirm water is coming from the FW tank drain and not the plumbing low point drains. Typically the plumbing low point drains are under the bathroom sink. Newer campers have a red and a blue pex tube. Older campers will have blue pex piping.
If water is dripping from the FW tank low point drain (clear braided hose), then your check valve at the water pump is not fully sealing, and a little bit of water is leaking past. Look up your pump model and there is a rebuild kit for the check valve. Not hard to do, but often getting the pump out can be a pain, as they are buried in some cubby.
It is not uncommon for the plumbing low points to drip. They are a simple pull handle, with an O-ring that creates the seal. Debris can get caught in the O-ring seal, or get nicked. The O-rings are easy to replace.
2012 Jayco X23B
2020 Ram Laramie 3500 SRW Air ride 50Gal fuel tank.
2007 Dodge Dakota Quad Cab (retired from towing)
Equal-I-zer 4-Point Sway Control