We have the same Jandy deck jets referenced in this thread. Ensure you have enough water pressure to put the stream where you want it. We have an Intelliflow VS3050 pump and our four jets are in the concrete approximately 18"-24" from the water's edge. They are plumbed 2 to a line and can be isolated in pairs (left/right) by ball valves. The ball valves give us all of the control we need and typically, the kids are the operators anyway. At 3000+- RPM, the jets arc up roughly 8' - 10' and overshoot the 16' wide part of our pool. I'd say they cover roughly 20' of ground although we've never measured Be advised, water going high and far into the pool will add a fairly loud waterfall sound to your poolscape. Experiment using your water hose to get an idea. Since you are installing them into the landscaping rather than under concrete, I'd also suggest glueing things together above ground and trying it out to test your placement before you bury it.