I just completed a catch cup test and am a bit confused on how to calculate the precip rate - primarily, what numbers do I plug in per zone. I have a lot of overlapping zones in my back yard - some as much as 3 zones per catch cup. I used 10 minutes as the run time for each zone. For example:
- Run zone 5 for 10 minutes
- Write down catch cup amounts for cups hit by zone 5
- Empty catch cups
- Repeat previous 3 steps for zone 6
Now, this is where my simple mind gets confused. For each catch cup hit by zone 5, should I be using ONLY the amount that the cup caught when zone 5 was running, or do I need to total up the values for the entirety of the water that was emitted by all zones for each cup that collected water from zone 5? For example, assuming the catch cups are in the same location when both zones run:
Zone 5 / Catch Cup 1 - 20
Zone 5 / Catch Cup 2 - 24
Zone 6 / Catch Cup 1 - 14
Zone 6 / Catch Cup 2 - 18
For Zone 5 calculations should I just use 20 and 24 as values, or should it be 34 and 42? Does that make sense? I read the Orbit instructions and it caused some confusion for me.
Also, I’m using http://irrigationaudit.hydrorain.com/get-started/#/audit to do the calculations, so at least that will make it easy once I am ready to input the numbers.
Thanks in advance for the help and be gentle on the newbie.