Leak detection in holding tank

[davestar]

Hi,
I just recently took my travel trailer (Kit Companion) on a camping trip and I found my fresh water holding tank has a leak. I looked at the tank which is right below my main bed and I can see water on the floor but I cannot tell where the leak source is.
Fortunately, it was a 3 day trip and we had water till the last day morning of our trip.

Could you please advise on what would be some ways to detect where the leak is originating?

Thanks for any help.

[davestar]

Thanks for the responses.
Found out the leak is from the top of the inlet fitting....picture below. Where the white silicone seal is..
http://flic.kr/p/f5B5Sy
Camper world suggested scraping the old seal and applying new silicone...going to try that.

[DiskDoctr]

Good old fashioned paper towels. Dry completely around it and watch to see what gets wet first. Go from there.

Yeah, most likely a fitting as most are a single piece construction.

Hopefully, you will find the dry paper towel under a fitting will get a few drops.

[opnspaces]

Probably coming from a loose hose clamp. If you have easy access you might drain it and remove to to see what's up.