while static discharge measures the elevation difference between the discharge point and the pump. Pump head describes pressure in terms of distance, usually in feet or
Pumps are typically measured by their GPM at a certain Head measurement. For example, a pump specification may read 150 GPM at 50 Feet of Head, which means the pump will work at 150 gallons per minute when pumping water at a height of 50 feet. How to Calculate GPM The GPM formula is...
Head is the height to which a centrifugal pump can raise water straight up. Water creates pressure or resistance, at predictable rates, so we can calculate pump head as the differential pressure that a pump has to overcome in order to raise the water. Common units are feet of head and pou...
If you scrape, sand, or remove old paint, you may release lead dust or fumes. LEAD IS TOXIC. EXPOSURE TO LEAD DUST OR FUMES CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a properly fitted NIOSH-approved respirator a...
Key facts about R-values in sleeping pads: Higher numbers mean more insulation. The scale is straightforward: A pad with an R-value of 2.0 is twice as warm as pad with an R-value of 1.0. To calculate the total insulation for stacked sleeping pads, simply add their R-values. ...
How to Calculate the Water Inflow Rate = Calculate the Necessary Sump Pump CapacityTypically most of us just buy a 1/4 hp or 1/2 hp sump pump and throw it in the pit and see what happens. But you can guesstimate the rate at which water is flowing into the sump pit by knowing the...
If you don't have electricity and need to run a generator to power your equipment, make sure you place the generator outside and at least 20 feet away from any door, window or vent to ward off carbon monoxide poisoning. Be sure to wear rubber boots if operating elec...
Machine vision has advanced immensely over the last decade, but Apple and Google’s map apps remain functionally illiterate when it comes to a big green sign at the top of an onramp to U.S. 50 eastbound from North Courthouse Road in Arlington. That sign’s message is reasonably simple com...
Each pump has a motor at the top, which spins a long drive shaft. The drive shaft extends down through a pipe, to a propeller positioned 13 feet (4 m) underwater. When the drive shaft spins, it rotates the propeller, which drives water upward through the pipe (in the same way a ...
Ideal weight formulas were originally developed for use by doctors to calculate drug dosages or determine nutritional needs. This calculator uses the following formulas: Robinson Formula (1983)15Male: 52 kg + 1.9 kg per inch over 5 feetFemale: 49 kg + 1.7 kg per inch over 5 feet Miller Fo...