How to monitor for leaks in a crawl space?

twilightcall

I am planning on redoing some plumbing in a crawl space in my house. Once I am finished how can I monitor it for small leaks often without crawling underneath the house every few weeks. I will notice a large leak but what is the best way to notice small little leaks? Install a gauge in the house? If so where is a good place to put it and at what part in the line? Any info would be appreciated.

redline

Will these be supply lines or drain lines?

twilightcall

Supply lines

jpplumber

Why would you think you would have little leaks? Are you doing the repairs and you don't trust yourself? If you inspect your work after it is completed, look it over real good with the water on...use a flashlight and a mirror and wipe it with a dry rag or paper towel....if it is dry there is no need to keep inspecting it.....but if it makes you feel better you can put a gauge on the hose bib and turn the water on (note the pressure) and shut it off at the main and wait 5 or 10 minutes...if the pressure drops there is a leak somewhere (or someone flushed a toilet) If the pressure increases the water heater kicked on so you might want to turn it down before the test.