After moving mine would not prime, I tried all of the tricks you find on here I was ready to give up. I took the top where the k cup goes in and I pulled the hose off of the one way valve, I then took a meat injector syringe and put it in the hose while blocking the over flow back into the water tank with my thumb I pulled and pushed water thru the the hose until i got hat water coming out of the hose. this will push water into the tank and prime the pump. it now works just fine.