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<p>[QUOTE=&quot;GDJMSP, post: 974398, member: 112&quot;]Well Dick is right in one way actually - the odds of getting caught by the sewer district are pretty much non-existant. Unless you&#039;re a construction site, then you can get caught pretty easily.</p><p><br /></p><p>But there is another reason too. Say you do dump acetone down your drain. And you don&#039;t have PVC pipes to harm. No harm, right ? Well maybe. But just about every home or apartment there is has a utility room or basement where the hot water heater and furnace is. And in that place there is going to be a floor drain.</p><p><br /></p><p>Now, floor drains have a P-trap on them. The P-trap holds water and it is that water that keeps nasty smells from the sewer system from entering back into your house. But if you don&#039;t run water down that floor drain on a regular basis (and most people don&#039;t), the water in the P-trap evaporates in a week or two. That leaves a straight shot for air and fumes from the sewer system to enter your home.</p><p><br /></p><p>So say you pour a bunch of acetone down your drain. The fumes from acetone can (not saying it definitely will but it can) enter your home through that dry P-trap. And if it does, and it doesn&#039;t dissipate before the next time your water heater or furnace lights off - BOOM ! Goodbye house.</p><p><br /></p><p>And no, I am not overstating things. Explosions are caused every year from fumes entering into a home in exactly the way I am describing. It&#039;s not always acetone, but it is sometimes. Other times it is gasoline, alcohol or just about any solvent. And the house that blows up is often not even the guilty culprit - it can be a neighbor because the sewer systems are all tied together. All that is needed is for the liquid to sit in the pipes and evaporate. Once it does it heads back upstream because the fumes are lighter than air. Eventually they will find a way out. and when they do, if there is a flame nearby - BOOM ![/QUOTE]</p><p><br /></p>

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