Confirming Bad Water Pump

I had/have this problem on my Suncruiser occasionally. If the pump loses it's prime I have no on board water supply. In that case I completely top off the fresh water tank and take if for a short drive with a faucet open & the pump on. Sometimes the jostling from the drive will prime the pump. Last month that didn't work for a boondocking trip, and I discovered a faster way. On my RV, the pump is fully exposed & accessible. After removing & cleaning the pump head (no change) I removed the pump discharge hose from the junction and gave it a small suck, and almost immediately I was getting a bath! As long as my water pressure is good from the faucets & shower, I see no need to replace the pump just yet, it's a two minute job to prime the pump at the hose. Good luck:)