Quote Originally Posted by mas985 View Post
Why not the EcoStar instead of the TriStar? It is slightly more efficient and about the same price.
Only reason was the 3hp vs 2hp. Electronics are the same. I didn't want to pay for a pump if I couldn't use its capacity. Since most of the installers are recommending the intelliflo, thats why it is still in the list even though its 3hp.

Quote Originally Posted by mas985 View Post
Please explain what you mean by this. All the pumps you mentioned are over 2 HP.
The TriStar is a 2hp uprated pump. The Intelliflo and and EcoStar are 3hp. My piping is only 2" into and out of the pump. The returns then split to two 1 1/2" which then split in two for a total of 4 returns for a single 2" pipe out of the pump. When I read the instructions for each of the pumps, the book notes that the installer must restrict the flow of the pump to match the pipe used.