A conventional electric water heater will come with a black wire and a red wire which are connected to the wires of the same color as described above. The ground wire is attached to the green ground screw which is in the same wiring junction box compartment which is built into the top of the water heater.
Using Sulfur to Lower Soil pH. You can make larger adjustments to your garden soil pH by using some form of sulfur. Sulfur lowers soil pH as it is broken down by bacteria in the soil and converted to sulfuric acid. Sulfur is most commonly added in the forms of aluminum sulfate, iron sulfate and elemental sulfate.
Signs You Need to Lime. One sign of a low soil pH is the presence of excess moss and weeds in your garden or lawn. Moss and weeds are acid loving plants and do best in acidic soil. Though not a guaranteed indicator, an excess of moss and weeds is a good sign that you should raise soil pH.