note: unless noted otherwise, prices are in Australian
Your missing the point. So, assuming that $20usd is roughly the same value as $40aus, then that's not very much money. Not sure how it is over there, but over here it's pretty easy to go out to dinner, or to a bar and spend way more than that. Hell, I take shits worth more than that. (and it looks a little like this -->
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The point that JSimmons was trying to make is that a pump is one of the most important parts of your system. Not only is it an important part of making your water system circulate, as it is critical to have adequate flow, but an old misfit pump such as one from an old dead washing machine would probably create and add quite a bit of heat to your water. Most importantly, however, more important than flow and heat addition, is reliability. Old dead washing machines are dead for a reason. Because they are old and worn out. When you skim and save $20 on your pump, and it dies, and your system stops flowing, and your cpu gets hot and burns itself to itty bitty pieces, and you have to spend an extra $400 for a new proc, you will realize that it's worth it to cut back that $1 a day for the next 20 days to get that via.