Thanks Terry! I will start a new thread like that. But no matter how "positive" I start, it will probably go negative quickly. I think maybe who is negative and who is positive about the CSV should be the direction of the thread. Anything negative you find will have been written by an "engineer or pump installer", but not a pump or motor manufacturer. The pump and motor manufacturers will say negative things about the CSV, but I cannot get them to admit it or put it in writing. However, ALL of our customers from as far back as 1993 are happy and positive about the CSV, as hundreds of five star reviews and old style testimonials prove.
When hundreds of my neighbors say a product works, saved them a lot of money, and solved their problems, I want one and don't even need to know what it does. When I see pump manufacturers and installers (who make money selling pumps) jumping up and down despising it, I want one even more. I can't see a pump manufacturer or installer despising something for making them more money? They just don't like it when something messes with their planned obsolescence.
"Cheapening up things so that lifespans are degraded" is the way the pump business operates. The big companies buy out the smaller ones to get rid of competition. Then they cheapen the product and sell one pump under ten different names, including the name of the company who use to make the good product. Motor companies buy out other motor companies, then all of a sudden the only motors available are shorter and cheaper made. They are doing their best to build VFD's into every motor, and don't fool yourself thinking that is to make it less expensive and longer lasting for the homeowner.
We would all be stuck with having to do what the manufacturers and installers want if we couldn't get together and see what our neighbors are doing. I quit going to trade shows and supplier hot dog days years ago. There is no sense in trying to sell a disruptive product to the people who's livelihood it disrupts. A disruptive product is good for the end user. But to find out about such things we have to go around the people who don't want us to know about it. Thank goodness for the Internet and thank you again Terry.