The shaft seal is the component that seals the engine shaft as it enters the pump case. Carbon/ceramic is the cheapest seal material there is and is a strong indication that your pump is designed to pump water only. Cheap trash pumps usually utilize small diameter carbon/ ceramic shaft seals. The agitator water jet system is necessary to deliver kinetic energy (energy of motion) to the sediment to take it from a solid state rendering it a fluid slurry.Ĭheap trash pumps are not designed to withstand abrasion or shock. The combination of land and fresh-water and marine fossils found and a lack of complete skeletal material leads us to believe that this small fossil-containing bed was very likely an area where a stream emptied into a brackish or salt water environment.First of all, a self priming pump alone is not very effective in removing sediment. No complete vertebrate fossil skeletons, skulls or skeletal parts were discovered during the collection process. Fossil Location Your browser does not support the audio tag. We even have a collection of fossils from the ice age, including mastodon, mammoth and scimitar cat fossils. As you move along, you will also see fossils of land animals like camels, horses and more. In the cases in front of you, you will find fossils belonging to many sea creatures including conchs, urchins, sharks, whales and sea turtles. Fossils Found Your browser does not support the audio tag. The picture on the display cases showed this dredge in action. In 1992, in addition to the usual sand, shells and rock material that were brought up by the dredge, pieces of fossilized bone started to appear from a narrow zone of sediment between 30 feet to 40 feet beneath the surface of the lake. Then, in 1984, the Solid Waste Authority of Palm Beach County took over this operation. In the mid-1960s, Palm Beach County began dredging a lake for cover material, which was sand, to cover the solid waste dumped at the Dyer Boulevard Landfill. Background and Discovery Your browser does not support the audio tag.
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