Only one problem. It doesn't take the 189,819 letter word thats in a 40 page document at http://anshprat.wordpress.com/2007/12/12/longest-word189819 !!! (To see the word, click the link that says "189819 characters".
take any common word -- form, for example. add to it for mass points. form, forms, informs, informative, informatively, information, formation, formations, etc.
To make more sense of what he said: keep building water rods in about the same place until you can't build any more. Then press start, then the arrow at the top-right corner. after this, you can drag the red shape to the end. (this doesn't work on the level 'back and forth'.)