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					Originally Posted by  Glennrf38
					 
				 
				I thought about that, but I'm thinking that would lift it up too much. The excess "tabs" from the eggcrate seem to lift it up about  3/8".  Sort of like this. 
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 Sorry, I guess I didn't explain well enough. The pipe is cut to the desired/required length and stood on end. That way you can raise the rock/eggcrate to the height of your choice. I used fairly large diameter stuff, 3 inch and my other error is that it's ABS not PVC. My sandbed is close to 4 inches in some spots, I cut the ABS to about 3 inches and stood the pieces on end, so height is 3 inches.