I just wanted to share a quick chart to measure how many GPH you are flowing based on filling up a 1 or 5 gallon bucket. Basically put your return in the bucket and start a timer. The number of seconds it takes (column 1) to fill either a 1 gallon (column 2) or 5 gallon (column 3) is how many Gallons per hour you are flowing. I was looking for this online but only found a 5 gallon, so thought I'd share. Sorry the formatting pasting in doesn't come out right, so picture included as well.
Time in GPH to fill a bucket
seconds 1 gallon 5gallon
1 3,600 18,000
2 1,800 9,000
3 1,200 6,000
4 900 4,500
5 720 3,600
6 600 3,000
7 514 2,571
8 450 2,250
9 400 2,000
10 360 1,800
11 327 1,636
12 300 1,500
13 277 1,385
14 257 1,286
15 240 1,200
16 225 1,125
17 212 1,059
18 200 1,000
19 189 947
20 180 900
21 171 857
22 164 818
23 157 783
24 150 750
25 144 720
26 138 692
27 133 667
28 129 643
29 124 621
30 120 600
Time in GPH to fill a bucket
seconds 1 gallon 5gallon
1 3,600 18,000
2 1,800 9,000
3 1,200 6,000
4 900 4,500
5 720 3,600
6 600 3,000
7 514 2,571
8 450 2,250
9 400 2,000
10 360 1,800
11 327 1,636
12 300 1,500
13 277 1,385
14 257 1,286
15 240 1,200
16 225 1,125
17 212 1,059
18 200 1,000
19 189 947
20 180 900
21 171 857
22 164 818
23 157 783
24 150 750
25 144 720
26 138 692
27 133 667
28 129 643
29 124 621
30 120 600
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