[Geysers] Grotto discharge

[TSBryan at aol.com]

An idle thought that likely is nothing more than that. But the other day  
Ralph Taylor wondered about the discharge volume of Grotto Geyser. Looking at  
Marler's Inventory, Marler cites a value of 670 gallons per minute -- that  
strikes me as being precise enough as to have been determined by actual  
measurement.
 
OK, so... do some multiplication and you find that a 33-34 hour long Grotto  
marathon -- about as long as they ever can be -- will discharge something  
around 1,000,000 gallons. And of course, the commonly-cited value of discharge  
during a Giant eruption is 1,000,000 gallons.
 
So, Grotto has a long marathon, discharging 1,000,000 gallons from the  
entire Grotto-Giant system. That volume is regained during the hours leading up  to 
Giant's recovery hot period, which as we know frequently results in a Giant  
eruption. So...
 
 
... now you carry the thought onward.
 
Scott Bryan
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