Our first Watertronics Booster Pump Station has been up and running for the past week at one of our schools. I must say... it may be spendy at about $18K but it is doing its job quite well. Since the irrigation is now hooked up to domestic water with ample water but insufficient pressure a booster system was necessary. The pump is "dialed in" at a specific 200 GPM and provides enough additional pressure that our "worse case scenario" sprinkler head gets 60 PSI at it. The pump is a VFD and operates quite well on both low volume and high volume demand. I haven't seen this system EVER work right until now... of course I tried to tell the district that spending $250K on the irrigation system back in 2001 was a waste of money since the old well would neither pump out the water or pressure required for the system to work well. The district is so impressed with the unit and my observations that they're already getting the necessary max GPM and existing dynamic pressure at two other sites in order to have units made for them. Here's a link to a picture of the unit. http://www.lawnsite.com/showthread.php?p=2287460#post2287460 Eventually I'll open the thing up when I have a camera ready and take some pics of the inside.