As I was told by a friend in the trade, ASV's are a CA. thing. In all the years that I've installed ASV's here, I've never had a problem like I'm having with Hunter ASV's. I switched from Rb's to hunter, primarily for the points and material cost. In 2005, I had no problems with leaks using Lasco m.a.'s and the hunter ASV's. In 2006, starting with my second case bought, every other valve would leak from the threads. Contacted Hunter's customer service regarding the issue, what i was told that Lasco's m.a.'s didn't go into threads enough. They recommend switching to spears m.a.'s. Sounds kind of funky to me because if I use any other brand valve(irritrol, R.B. toro ect...) with the Lasco fitting, I never have any kind of problems, but the Hunter asv, nothing but trouble. The problem I have with getting Spears fitting, only available at Ewing. Horizon and JDL all carry Lasco fittings. Hate to make a special trip to Ewing, just to buy male adapters. Any of you have a good contact with Hunter? Would like to try to figure out if they are having problems with production or something. I could go to the slip version of Hunter ASV's, but that would limit me to buying those valves while I'm out in the valley as they are not available except special order here in the Peninsula. Any help would be appreciated. By the way, been doing this for a long time. The leaks occur whether using tape or paste, hand tight and tightening with pliers, still leaks.