shown in the ready to run position in this position hydraulic fluid which has been pumped into head space 41 forces piston 42 down compressing piston spring 44 between piston 42 and collet base 51 collet 52 which receives the distal end of seal rod 43 is a spring finger collet that grips the distal end of seal rod 43 when pressure pulse piston spring 54 is compressed between fluted connector 56 and collet base 51 depending on the amount of cement slurry to be dumped a number of bailer tubes 81 containing cement slurry are attached to the lower piston housing 70 in the preferred embodiment a water pad of the type know in the art is placed on top of the cement slurry referring to fig2 once hybrid bailer 100 is lowered into the well bore to the location were the cement slurry is to be dumped solenoid valve 32 is opened allowing the hydraulic fluid to flow from head chamber 41 through passageway 36 and into void space 28 of solenoid valve housing 20 thereby relieving the pressure in head chamber 41 this allows spring 44 to push piston 42 up thereby disconnecting rod 43 from collet 52 once rod 43 is disconnected from collet 52 spring 53 then forces fluted connector 56 down thereby accelerating pressure pulse piston 71 as pressure pulse piston 71 accelerates it strikes the water pad creating a pressure pulse or shock wave that is transmitted to the cement slurry the pressure pulse creates a force that shears shear pin 83 there by freeing plug 82 which travels to and is.