1. The pump pumping should first take a good self-prepared oil hose, and then the pump completely into the clean oil or water.
2. The pump, after use, should put the pump from the oil or water out.
3. The bottom of the oil pump filter is with stainless steel filter, so that it pumping out more clean. Bottom filter with a threaded interface, convenient disassembly, repair, replacement, to achieve the purpose of repeated use.