Water Leak in storage underneath toilet

[Truman]

I am having a problem with an every now and then water leak. Our unit is a 2018, Eagle HT, 28.5 RSTS. I am hoping someone else might have had the same problem (unfortunately) and was able to determine the exact source of the leak and fixed it. I have noticed anywhere from a1"-5" puddle every now and then in the pass through storage directly under where the water supply line goes up through the floor to the toilet. I think it will drip down the toilet supply line and drip onto the floor from the 90 degree water hose connector from where ever the water source is coming from. Note, I have changed out the 90 degree plastic connector with a brass one as a first step but when we recently camped the intermittent drip still happened. I have also checked behind the toilet but do not see any water on the floor and do not feel any moister. I have checked the shower drain area and do not see any any cracks or loose fittings. The drain inside the shower is tight with absolutely no movement.
One other thing to add is when we camped in June 2020 at an overnight stay I turned on the water pump instead of hooking to city water. During the night I recall the water pump turned on for a split second, twice, during the night. I have not heard the water pump do that since.
I have attached a few pictures. Where you see the whitish color on the pass through storage floor is where water has been.
Please if you have experienced this let me know your fix or thoughts. Thank you.

[chrismoore701]

Check the valve on the toilet

[Truman]

Is that just above where the water supply line attached to the toilet?

[Cavie]

Originally Posted by Truman

Is that just above where the water supply line attached to the toilet?

yes.

[Cavie]

Originally Posted by Cavie

yes.

Also unless you like mice you need to fill ALL the holes that penetrate the floor in the whole RV with Stainless steel pads or spray foam.

[Truman]

Thank you Cavie

[atlantaM3]

Originally Posted by Cavie

yes.

Check the connection onteh back of the toilet. On mine they had cross threaded the connection, so while tight, it has a small leak that would drip down the supply pipe.

[Truman]

I have put paper towels on the water supply line on the back of the toilet and no moister on the paper towel. I have also felt the water supply line and no moister detected by the touch. My next move is to change out the rubber flange at the bottom of the toilet to see if that is causing an intermittent leak. I guess it all comes down to a process of elimination.

[atlantaM3]

sometimes they leak on the inside part of the fitting, between the top and the base. Worth checking at least if there isnt an obvious source.

[Truman]

atlantam3, I just ordered a new toilet so if this one is leaking hopefully this will solve the problem. Unfortunately I figure it's a process of elimination. Talked to a tech at Thetford today and he told me of 3 different areas that can leak on these toilets.. He further told me if you get a crack on the toilet side in the area the water supply is attached the toilet needs to be replaced. We will see what happens. Thank you for the info.