To check for leaks, inspect the pipes for visible leaks or dampness. Check under sinks, around toilets, and in the basement or crawl space. If you notice any signs of a leak, call a plumber to fix the problem.
If you’re handy and want to adjust the regulator, locate the valve near the main water supply. Use a wrench to loosen the lock nut and then turn the adjustment screw clockwise to increase the pressure or counterclockwise to decrease it.