03-28-2011, 02:40 PM
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Originally Posted by SinCrisis
I'm pretty sure that to use the dishwater, you would first have to run a couple of empty cycles to get the dishwashing powder/detergent residue out, then put in your decor, wash, dry and risk having your plastic plants melt, and rocks getting your dishwater all gunked up if there was a crack with dirt or whatnot in it.. <--seems like a lot of work and risk as compared to just boiling water and pouring it on the rocks...
No worries - The dishwasher does a couple of rinse cycles before it finishes...so you don't have soap residue on your clean dishes, so there is no real residual to cause concern. I've worked in a plastics extrusion plant for over 35 years.... water, even boiling is 212 deg F at sea level. Plastics used in aquarium plants melt at or above 400 deg f. They aren't going to melt in the hot water of the dishwasher.