Gecco DROPMASTER Mini E, Operation Manual

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IV. Water Calculations
Please Note
Utilize this worksheet to perform calculations at project site to determine residual water that
will be captured by Dropmaster tank before placing Dropmaster in service.
1 Gallon of water = 8.344 lbs.
Pressure Vacuum
1 psi =
2.036 inches H.G.
5 psi = 10.18 inches H.G.
10 psi = 20.36 inches H.G.
15 psi = 30.54 inches H.G.
Water in Pipes By Size
Pipe Size
Schedule 40 Schedule 10
1”
per foot .045 .049
1 ¼” per foot
.078 .085
1 ½” per foot
.106 .115
2”
per foot .174 .190
2 ½” per foot
.248 .283
3”
per foot .383 .433
4”
per foot .660 .740
6”
per foot 1.501 1.649
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