Physics Application -- Work: The tank shown below is full of water....

[calc_help105]

​The tank shown below is full of water. Using the fact that the density of water is [FONT=MathJax_Main]1000[FONT=MathJax_Math-italic]k[/FONT][FONT=MathJax_Math-italic]g[/FONT][FONT=MathJax_Main]/[/FONT][FONT=MathJax_Math-italic]m[/FONT][FONT=MathJax_Main]3[/FONT][FONT=MathJax_Main],[/FONT][/FONT] find the work (in joules) required to pump the water out of the outlet. Make sure your answer is correct to within one thousand joules.

I don't know what I'm doing wrong:

Integral of pi*(1.5)^2*(1000*9.8)(x+1) from 0 to 6.

Which is 34636x^2+69272x evaluated from 0 to 6 = 1662528 J.

Thanks.