Toilet leaks water from the little holes around the rim

[Steve Gorman]

Water leaks from the little holes around the rim, when hooked up to city water. And fills the toilet in just a few hours.

[Steve Gorman]

I always use a pressure reducer 50 lbs psi

[topgun2]

9 hours ago, Steve Gorman said:

Water leaks from the little holes around the rim, when hooked up to city water. And fills the toilet in just a few hours.

Sounds to me like you have some mineral buildup in the line to the toilet.  Something is preventing/slowing that flow into the toilet and, therefore, causing the slow "fill".  

There are several threads here on the Forum concerning getting rid of mineral buildup (or other blockages) in the water lines.

Bill

p.s.  you might also look at YouTube videos like THIS one.

[jd1923]

14 hours ago, Steve Gorman said:

Water leaks from the little holes around the rim, when hooked up to city water. And fills the toilet in just a few hours.

I'm reading this like it's slowly filling on its own, without the foot pedal valve being actuated, when pressurized by City Water. Extreme calcification is likely the cause and what Bill @topgun2 mentioned, some kind of vinegar decalcification process is  necessary throughout your plumbing system, and also clean the filter at the water pump, soak all faucet aerators in CLR, etc.

But at this point, you have your toilet fill valve crusted up enough so it will not fully seal. Looking at the picture it's hard to know if it is a serviceable unit. If not you will need to replace it with something like this: https://www.etrailer.com/Accessories-and-Parts/Dometic/DOM93FR.html

Your first step is to get off City Water. Fill your fresh tank and use your water pump. This way when the pump is OFF it will not fill the toilet bowl! This would get you home or give you time for the repair. Then when you can, remove the foot pedal and the valve. See if it can be disassembled for cleaning or read the part number for correct replacement.