Re: User installed flow switch to control SWG with IntelliFl
Sorry I misinterpreted his post. I am aware of the various cheaper flow switches to which he refers. Since others have indicated that flow switches are not particularly reliable over the long haul, I decided that these made in China models might not be all that durable and am going for the more heavy duty USA made unit. Also cannot find reliable info on the Chinese models regarding whether or not the threads on the units are standard NPT or not. One supplier says the threads are metric. If so, good luck find the necessary plumbing parts to install it. Of course, Amazon has great return policy so I guess that is not a big problem if one can't find the needed plumbing.