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hoppycalif · 04-28-2008, 12:05 PM

Part of the sagging problem with plexiglas (acrylic) is that it absorbs water. It absorbs more on the side next to the water, than on the side exposed to the air, so it warps. Glass works better.

04-28-2008, 12:05 PM	#5 (permalink)
hoppycalif Senior Member Join Date: Apr 2005 Location: Sacramento, CA, USA Posts: 5,208 iTrader Ratings: 20 iTrader Positive Rating: 100% Plant Points: 227345	Re: DIY vs what is known to work... Part of the sagging problem with plexiglas (acrylic) is that it absorbs water. It absorbs more on the side next to the water, than on the side exposed to the air, so it warps. Glass works better.