I purchased and installed a Pentair Intelliflow in April 2007. I've had a green pool since April.
This pump acts intelligent, but it's not. At least the firmware in my pump is not. Here my issues with this pump - consider this a warning before your purchase this pump:
1. Clogged supply - Initially after the install I had leaves at the bottom of the pool, only the main drain was on (no skimmers). The pump was priming and after about a minute the pump generated a clogged drain alarm (forgot exact verbiage). The red alarm light came on, and the LCD posted the clog alarm message. Funny how the pump didn't stop on its own....I pressed STOP and nothing happened. I pressed STOP about 10 more times, and the pump never stopped. Had this been a real life emergency (i.e. somebody's hair in the main drain) the situation would have been ugly if not deadly.
2. Priming - After my filter reaches above 20%, the pump can't be restarted for at least 1 hour after it's turned off (sediments dropping to the bottom of the filter). The priming cycle is not very intelligent. I may have a priming flow of 30 GPM, 15 PSI, 400 Watts, no air in the system. Everything looks good....then the pump spikes the RPM's / power to above 2000 Watts for an instant. After this the power drops to 180 W and starts climbing again. This cycle repeats about every 30 seconds until the max priming alarm time is met, and an alarm is generated, the pump stops and the pool turns green if you are not baby sitting.
The 1st time I called Pentair with these complaints, the tech on the phone was no help. He didn't have any intelligence to contribute to the Intelliflow pump operation.
Last week I called again, because I'm tired of babysitting my Intelliflow pump. So far I've waited 7 days. Somebody is supposed to show up tomorrow. So far I've explained these problems to 4 people at Pentair & their service channels, and nobody has been even intelligent enough to ask about my settings.
I don't have time for this. I would rather have a constant RPM pump grinding than a dumb pump pretending to be intelligent, with very unintelligent people to stand behind its unintelligence.
After Pentair provides me the technology to make this dumb pump intelligent, I'll post an update.