Fresh water tank leak

I would say if you fill that tank as you are sitting and no water comes out, it is not the tank.
After you determine that, turn the pump on but don't run any water. If it still doesn't leak, you do not have a leak on the supply side.
Once that is determined. Run water in one location at a time i.e. kitchen sink, and then see if you are getting anything out of the vent. Then bathroom sink and followed by the shower. That will tell you if you have any leaks on the drain side.
If none of those, I would say it is probably just water that gets in there when driving in rain or you might even have a roof leak somewhere.

Another picture from the side.

Here is a picture looking from the side of the camper. You can see the drain port in the picture as well, We drove it home today and now it’s not leaking. There is another vent towards the back, right side of the picture. I will try to post another picture

Can you provide a picture from a little further back? I would like to see where on the bottom of the trailer that vent is.

Deano_1 wrote:
There is no water leaking from the pump or from what I can see in the storage area around the pump. It seems to leak more when it's been under pressure from running the pump. If I fill it and drive to a campsite or fill in the driveway without running the pump, it seems fine.

Thanks

If it leaks more when the pump is on and the lines are under pressure, it would be after the pump.
If you leave the pump on and use no water does the pump cycle on and off every now and then?

Yes, bottom of camper is where the water is coming from

There is no water leaking from the pump or from what I can see in the storage area around the pump. It seems to leak more when it's been under pressure from running the pump. If I fill it and drive to a campsite or fill in the driveway without running the pump, it seems fine.

Thanks

SO, that pic is of the bottom of your camper? Plastic panels for insulation and that vent is where the water is getting out? That is not your water tank. The plastic is just a cover holding in insulation.
Likely you have a pipe leaking, not the tank. It could be an easy fix, it might be the end of you.
You will have to fix the leak, it might have already done a lot of water-damage. First, look in the cabinets for water pipes and feel around for wet. The last thing is to remove that underneath panel and look for the pipe leak. Start easy, work up to hard.

That does not look like something that would be in the bottom of a fresh water tank to me. You can take out those four screws and look but my guess is it is just draining water that gets up in the coroplast when driving in the rain.