I have 6 guys that work for me. I personally have not done Jack in the field for almost 5 years. I assume he pulled it out by hand but I'll ask him this morning when he comes in. I never said I had any Clack valves back there, in fact I think I said I did'nt have any Clack valves back there and there and I'll bet theres more than a dozen back there though I suppose I could run on back and count them too if you need me too. It's a motly collection of GE's, Autotrols, some Flecks, Kinetico's, all the usual stuff. Clack's have not been around these parts for them to start showing up in the junk pile yet. No need for arguing with me about Clack valves. I like them. I sell them , we install them and I've said many times that for an electronic, demand metered valve, Clack is my current valve of choice.