Ok. I need help as the way I am calculating this I am getting a result I just can not get with the pump that I have.
Ok. I did a water change tonight on my 80. I usually just pull one of the drain lines from the overflow out and put it in a bucket to remove water from the system. Well tonight I figured if I took both drain lines out and then counted the seconds it took to fill the bucket I could estimate the flow produced by the pump.
So I did just that and I counted in my head. (u know 1 one thousand, 2 one thousand ....) and it took approx 10sec to fill this bucket.
So, I took this time of 10 Sec and multiplied it by 6 to get the GPM flow rate. Well 5 * 6 = 30 Gal
. So then i took the 30 Gal
and multipied it by 60 as there are 60 min in an hour. So 30 * 60 = 1800GPH. And that result just cant be possible as the pump is supposed to put out only 1300 GPH
or so at 3' of head and I got 4' of head and a few 90's in the plumbing so that should slow it down also.
So is my logic messed up someplace? I mean I am theorizing that the water comming out of the drain lines is draining as the same rate the pump is putting water into the tank. I mean its alot easier to belive a value of 1/2 of what I got at 900GPH vs the 1800GPH result that I got. But for that to have happend I would have had to count 1 sec ever 2 sec and I dont think I really counted that slow.