Thanks for the article.
I did leave out the fact that I purchased the "Pentair quiet one" pump for external use. I used it as a gravel washing pump with my Python and it was mounted outside my window. It had a ball valve for adjustable outflow which ran down a pipe and into a drywell which I installed in my backyard which is the same dimensions of my aquarium.
I chose the Pentair product because it was a well known name in the pool/spa industry and also had a good price.
The author in the article has come to the same conclusion that I did.
Quote "Even though the new pumps are a completely new design, I have not tried them because of my previous poor experience with the old ones."
I usually only really inspect my filters every two-three-four weeks and depend on my noticing that flow has stopped or something to that effect. I think it is important that if a pump is depended on for a filter application that I would purchase an better quality one such as the Iwaki w/japense motor... just like the author of the article has said.
Just because the Quiet One pumps were originally design to do a particular task doesn't mean they are qualified.
I have three Eheim canister filters and they have never needed there motors clean to resume working. But by the same token I had purchased an inexpensive tetra HOB filter from Walmart for my Quarantine tank and within 5 months the motor has lost 60% of its original power and even cleaning cannot help.
My choices would be Eheim/Iwaki w/japense motor
OR
Hayward Pool Products - Above Ground Pool Pumps - Power-Flo LX™ & Power-Flo II™