In rare cases, hypokalemia is caused by too little potassium intake. Many things can cause potassium loss. The most common cause is the use of diuretics, or pills that cause urine production. Diarrhea, vomiting, and excessive use of laxatives can also cause symptoms.
How to Use a Trencher. When it comes to digging, a trencher can dig a trench that's 4 feet wide and up to 36 inches deep. Use these step-by-step instructions to easily dig a hole in no time with the right equipment.
The depth may vary from 12 in southern climates, to 48 (or more) in northern climates. Dig the footing holes using post hole diggers if footings are fairly deep. The diggers keep the holes uniform -- keeping concrete use to a minimum. If you have a lot of deep footings, you may want to rent a power auger.