Review on FLUENTPOWER 1/2HP Submersible Pump For Rain Barrels, Ponds, Pools, Hot Tubs, And Cellars - 1050 GPH With Float Switch And 26Ft Cable - Efficient Drainage Water Solution by James Pfettscher

I use this to flush my on demand boiler (Navien). It works very well. I only have one issue. I’m not sure if the manufacturer can tell me if this is normal. But, I have to completely submerge it because the little round black tab at the top sprays water out. So I completely submerge that part so it doesn’t spray all over. At first I submerged 3/4 or the pump and I was soaked quickly by that leaking tab. Other than that it has good power and works fine for what I’m using it for. To flush my boiler yearly