Most people believe that if something costs more, it has to be better quality. In the case of generic drugs, this is not true, says Gary Buehler, Director of FDA's Office of Generic Drugs. The standards for quality are the same for brand name and generic products..uch of FDA's review of generic drugs and brand name drugs is the same, Buehler explains (See Same FDA Requirements for Brand-Name and Generic Drugs below).
Then evaluate tank water heaters on the same gph basis to determine how many gallons of storage are needed to meet this demand. While tankless water heaters do not run out of hot water, if not sized correctly, the flow rate of that water can be adversely impacted.
Follow these steps to measure the flow rate: 1  Set the timer to 10 seconds. 2  Turn on the cold water full-blast. 3  Start the timer and simultaneously place the container under the water stream or spray, making sure all of the water is collected. 4  Collect the water for exactly 10 seconds, then shut off the fixture.