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02-19-2010, 09:01 AM   #76
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All those wells have a high static level compared to the well depth. There is a lot of cold water underneath the motor. I don't know if that is what makes the difference but, it is a lot different than a 300' well with a static at 250'.

 02-19-2010, 09:04 AM #77 Member   Join Date: Dec 2009 Posts: 194 Rewards Points: 150 This is one of about 33,000 that met my search. 219201095924[1].pdf Last edited by user69544; 02-19-2010 at 09:37 AM.
02-19-2010, 09:06 AM   #78
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Quote:
 Originally Posted by Valveman All those wells have a high static level compared to the well depth. There is a lot of cold water underneath the motor. I don't know if that is what makes the difference but, it is a lot different than a 300' well with a static at 250'.
Give me figures of depth and static. I will look.

02-19-2010, 09:53 AM   #79
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Quote:
 Originally Posted by Daniel Holzman Gary, the formula you posted The weight of a column of water is figured at .433 psi times the height is for the pressure of the water in pounds per square inch, NOT the weight of the water. The weight of a column of water is simply the volume of the column of water times the unit weight of water, which is 62.4 pounds per cubic foot in English units. To compute the voume of water in a pipe, you take the area of the pipe times the height of the water. A 4 inch ID pipe has an area of approximately 0.09 square feet, so 15 feet of water in the pipe would weight .09 * 15 * 62.4 = 80 lbs +/-
Dan, that has nothing to do with what we were talking about.

We where talking about calculating TDH (total dynamic head) and you don't use the "weight" of the water the way you explain it or how Chris thought he had to. And you should know that.

I told him how to convert the "weight" to psi in terms meant to be easy for him to understand; .433 times the height of the column of water to the highest fixture in the system is part of the TDH calculation.
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 02-19-2010, 10:33 AM #80 Member   Join Date: Jan 2009 Location: South of Boston, MA Posts: 17,248 Rewards Points: 2,000 Keep the comments about the issue at hand Keep poking jabs at each other & you will find your posting priveleges suspended or terminated Thank you The exclamation mark is used to report Posts Please use it instead of posting a comment that continues an argument We do not read every post
 02-19-2010, 02:29 PM #81 Licensed Master Plumber   Join Date: Dec 2009 Location: New Hampshire Posts: 476 Rewards Points: 250 Gary is correct. The weight of water must be converted to psi in order to calculate TDH otherwise the figure would not make sense. Hey Dave, you are earning your money this week Thanks __________________ Always ask to see your contractors license! Last edited by NHMaster; 02-19-2010 at 02:33 PM.
02-19-2010, 04:45 PM   #82
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Last warning..REALLY
If you post something that does not directly concern the original poster issue/question then you will be on vacation for a while

LAST warning I am giving today

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