Now, this is actually less than the original quote, but still an exorbitant amount for a tablet that cost me $229. However, Iâd like to draw your attention to the above image, sent to me of my tablet by the ASUS repair center.
1 You'll feel a slack in the line. 2  At the point where you feel the slack, mark the line at the top edge of the casing (you can tie a small knot in the line, use tape or a marker). 3  Pull the line back up from the casing. 4  Measure the length of the line from the bobber to the marked line. 5  This is your static water level.
On a well and pump water supply system a check valve may be installed between the incoming water line from the well and the water pump and pressure tank, such as shown in this photograph of a one line jet pump with a check valve right at the water pump inlet.heck valves used on well water system piping are used to hold pressure in the system when the pump stops. Check valves on well piping also prevent backspin of the well pump, water hammer and upthrust inside the pump. These problems can damage the well pump. [1].