Head pressure of water

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Head pressure of water

Postby Roy » Sat Feb 04, 2006 8:13 am

Could someone tell me what the head pressure of water is. I.E. I have a 11,000 gallon (imp) tank , what psi would this water create ?
Also does this value change if the temp. of the water changes ?
Thanking you in advance for any and all help.


Head of water

Postby johhno » Sat Nov 08, 2008 3:46 pm

The volume of water is irrelevant, the temperature is a minor issue. What you need to know is the height of the column of water under consideration. Suppose you have a tap 10 metres below the bottom of the tank. Add to this the level of water in the tank, eg 2 metres. The pressure is 1.4 PSI for every metre of water so the pressure is total head of 12 metres x 1.4 =12.8 psi. Johnno.

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