Today friends we are having a pop quiz. Didn’t those words strike terror in your heart when you were in school? No – maybe you all were better prepared for such things than I was. Anyway, our quiz is easy – I promise – and guessing is allowed, perhaps even encouraged. See the large object below that Rick and Alex are moving?
That object is a 425 gallon water trough – or in some parts of the country it is called a water tank – which is the water source for our cattle. The trough is filled from rainwater coming off the cattle shed roof. This system works really well as long as there is regular rain; in November we got over 14 inches of rain and it was overflowing.
So, here is our quiz question: How many inches of rain does it take to fill the water trough?
I know you mathematical and engineering types are going to need precise information to make your calculations. The shed is 12 deep x 20 feet wide and the roof hangs over the edge about 2 inches on each side. The rain gutter is a standard size that we got at Lowe’s. The water trough is 10 feet long x 3 feet wide x 2 feet high. When we originally installed this system in November we had the rain spout running all the way down to the tank.
A couple of things didn’t work too well that way. First, the cattle used it as a rubbing post – they seem to use anything they can reach as a rubbing post. Second, and entirely unrelated, the first water tank was defective and when filled with water it bulged out at the seam. As you can see above, Rick put a strap on it to keep it together until the replacement tank came in.
I believe I have provided all the pertinent information necessary to answer the question – again: How many inches of rain does it take to fill the trough? If I have left out some necessary part of the equation (entirely possible) please let me know. The quiz will be open to carefully calculated predictions and wild guesses until the 20th of December when the answer and winner will be revealed. Please post your answers as a comment and let the games begin! The answer closest to the correct answer without going over will be the winner. There is an actual lovely prize for this quiz – which will be revealed in a day or two. So, get out your slide ruler (do they will make / use those?) and get to work on your winning answer!