Here is a description of my system: I have a 1" pipe that connects directly from my well to my lawn irrigation system. The pipe exits the house into a tee. One side (1" diameter) goes up to a shutoff valve, followed by some kind of pressure valve and then down into the ground to the irrigation system. The other side of the tee goes down about 6" to a standard garden hose valve. That valve is used in the fall to blow out the irrigation system with an air compressor. I want to use the garden hose outlet for flooding the rink. I understand that if I used a long run of a 3/4" hose, then the water volume would be limited. However, if I were to attach a 1" hose to the garden hose valve using the appropriate fitting, would volume be affected much by the smaller diameter valve? In electronics this would be like inserting a resistor, which would definitely affect the current flow. So the question is "how big is this resistor"? In case it matters, my well pump is capable of pumping about 20 gallons per minute. I could find out more specifications if necessary. By the way, in case you're wondering, I plan on blowing out the system from inside the house each time I use it (there are convenient air hose fittings in the pipe in the utility room).
I am a little concerned about getting water into the irrigation system even with the shutoff valve closed (such as if there were a tiny trickle of leakage). Any words of advice regarding this?
Thanks in advance for your help,