We have a 15 year old Sta-Rite 2 HP pump and I would like to install a Pentair Intelliflo pump. The easy part is the plumbing and power hookups to the pump. That I can do.
The idea with the variable speed pumps from my understanding is to run them longer and with lower flow. There is a Barracuda MX 8 suction cleaner that I have been running together with the solar panels on the roof. The current pump is good enough for that and I suppose the Intelliflo is rated up the 3 HP so it should be a good substitute.
However, for energy savings I would like to run the pump at lower speeds and I assume that the flow is not going to be enough to run the solar and cleaner at the same time at those lower speeds. So I suppose the idea is to for example run the cleaner alone without the solar for say 2 hours then turn off the vacuum cleaner line and open the solar and continue filtering while the sun is up. So for this I need some kind of controller and install Jandy valves and actuator for the MX-8 cleaner. The solar is already controlled by a Jandy valve and actuator and it is controlled by a Goldline GL-235. I actually run the solar pretty much all the time since we like a hot pool.
To complicate things, there is also a 4-way Len Gordon Air Switch controlling the built in Jacuzzi in the pool.
I am not looking for any fancy controller only something that can do these tasks. Doing it on the cheap is important if that is possible.
Here is a couple of pictures of the inlet side of the pump. The MX-8 suction is regulated by the manual valve on the right. I hope all this makes sense.