Hey all, I was trying to backflush some leaves off of my main drain and took apart the front end of the pump. When I removed the check valve, I noticed a rock was lodged in it. I put everything back together and tried several times to get prime and it wouldn’t work. I went up to the hardware store and bought some pipe and fittings to get rid of the check valve, however, I couldn’t find a union male side that would fit with the female side on the front side of the check valve. I’m thinking I would have to rebuild everything because of the limited space. I lodged the rock back into the valve and put everything back together and it primed immediately. How much is that valve restricting my flow and should I hire a plumber to rebuild everything? Thanks.