I upgraded my chiller and it needs 12min 25max water flow to work correctly, I have a few pumps that I can use so I do not have buy any but I am not sure if they will work, I have some weird named one that runs 70 l/m with 6 foot max head and Little Giant that run at 1000gph at 3 foot head. What is happening is I set up a new sump. It is up on a stand with a bulkhead toward the bottom, I connected pipes to in and they go down about 3 foot into the pump then the pumps pushes the water side ways about a foot into the chiller then up about 5-6 feet and over the top of the sump. Do you guys think this will get me my 12/25 waterflow. Right now the weird named one is hooked up. Or should I buy a bigger pump. The sump is high because it is gavity feed into another sump that then is gravity feed back into the main tanks sump.