spray into the aquarium. Make sure all the epoxy and silicon sealer is dry, and then take small rocks, and put them into the bottom of the aquarium. Put them one the side that has the plastic cup in it. Have someone hold the plastic cup for you so it won’t move when you put the rocks in. Put in the rocks so they just go over the cup, then pour in find sand. Pour in sand so that it is just under the brass pipes in the Plexiglas. Leave about an inch of room. Now test it. Pour water in the sand so that all of it is wet, then pour water in the sprayer. Make sure the plastic jug is in place to catch the overflow. Close the gas shut-off valve and pump the sprayer full of pressure. Tie string to the heavy object so you can retrieve it, and then place it in the sand. Now slowly open the gas shut-off valve. Data: I observed that the sand is tightly compacted even when it is really wet, but when water rises from the top, it separates the sand.Conclusions: When a heavy object is place in wet sand it won’t sink. Even if the sand is under water, and the object is still placed on it, it won’t sink. But when you let water rise from underneath, then it creates quicksand by loosening the sand and the object will fall....
