Holding Tank Leaks

[Kayak30336]

Been sitting in Florida for just over two months. Been dumping the black tank every 5 days or so. Prior to doing that I always close up the gray tanks a day or two prior to dumping the black tank so as to flush out the sewer hoses. A couple of days ago one of my gray tanks starts dripping then running water out from under the unit. I immediately opened the gray tank valve. After a few minutes the running water subsided and the dripping ceased. So while sitting still for 8 weeks, apparently my tank has developed a leak?? Probably somewhere near the top or on top. I haven't pulled the underbelly panels to check yet. I plan on doing that when I get home. Has anyone experienced this? I just want to know what I should or could be looking for. As far as the amount of water in the tank it was about 3 showers and 3 kitchen sinks full. I have since let one shower full and one kitchen sink fill the closed tank and no leaks. Answers and opinions appreciated.

[Lee Pedrick]

Looks like you are going to have to cut open and look. See if anyone around you has a snake camera,, start with a small hole,,use the snake and see whats up

[KeithInUpstateNY]

Any chance the tanks froze? I haven't been following the weather down south.

No real insight other than to observe that 3 showers and 3 dishpans of water shouldn't fill most gray tanks, unless they are long showers. Boondocking by myself and showering daily I only have to empty my gray tank about every 2 weeks. So when you do have a chance to visually inspect your tanks I would look mid tank and work my way up. If you have a five gallon pail you could fill it and dump it in the shower to get an idea of how many gallons it takes to reach the leak.