Originally Posted by oicwutudidthar
thank you for reading the thread title, I appreciate it.
I answered the question in the first post. Hence the quote marks..........
As for the question in the title that is not mentioned in the first post at all..........
You can control the speed of the pump by playing with the voltages. But you will need a fan controller in the first place that can handle high wattage (the pump takes over 1amp). It will not run at speed 5 since it's design for speed 4. You can make it run faster with making it run above the 12V that the fan controller gives it by modding the controller. But that is not worth the time or money.
Thanks for creating an easy to read first post