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.
RE: constructing ditches. It sounds like you have constructed a french drain when you really need an open ditch. Flatten the sides of the ditch so the top of the ditch is about six or seven feet wide. Bottom width is 1 foot and depth is 2 feet. This will provide a slope flat enough so the rocks will stay in place on the sides of the ditch. Then place the filter fabric on the bottom and rocks on top of the fabric.