Just got my drains done to do leak test before tank goes in final location. I am running a Jebao DC-6000 pump does anybody know what the actual flow rate on these pumps are? It says 1585 gph but, have heard people say it is less than they say. I hooked up 3/4" clear tubing then changed it over to 3/4 pvc before it goes thru the stand. So i have about 3' clear tubing and 2' pvc. I'm running it film blast on my 75.