Light reflection
1925
Its nothing to worry about, you have just over exerted yourself, maybe try and drink more water during the day.
running water
This happened when Jackson was president around 1833.
If you see water on start up, and it goes away this in only humidity in the exhaust system. There is no danger. If on the other hand, you continue to have water or white smoke all the time, have a pressure check on the radiator to check for leaks or blown gaskets.
I would check the toilets, that is about the only place water could be getting into the drain without seeing it.
When it's running straight at you and being chased by a Polar Bear.
It is for camoflage. the top is grey so things looking down just see grey like water, and the bottom is white so things underneath see white like the sunlight in the water.
Wash it with cold water
With the water turned off on all the water devices in your house, see if your water meter is still running.
The names of the first White House plumbers is not recorded. There is a web page (see link Plumbing in the White House) that discusses the history of plumbing in the WH, but doesn't talk about the annoymous tradesmen who made it possible. The webpage offers some interesting history on the history behind running water in the WH.
yes, especially if you fertlize. it is the residue of the disulved salts in the water