Fresh water

[Dingus6772]

Chances are it is like another trailer that I had. The tank was about 8 inches deep, the inlet (gravity) was on the side and the pump suction was on the side also. I calculated the 'loss' due to where the fittings were and it amounted to almost half the tank capacity. You need to see where the pump suction line is and see how close to the bottom it is. Also, verify the sensors are sensing correctly. What is the capacity of the tank?

The pump is on the same side as the suction line and the sensors are reading correctly. The tank is approximately 50 to 60 ish gallons. Every since I changed the pump it's been doing this. I figured my wife was using to much water and didn't think anything of it. The sensors say it's half full and I usually drain it before I store it and noticed it was half full

 

[Dingus6772]

The pump is on the same side as the suction line and the sensors are reading correctly. The tank is approximately 50 to 60 ish gallons. Every since I changed the pump it's been doing this. I figured my wife was using to much water and didn't think anything of it. The sensors say it's half full and I usually drain it before I store it and noticed it was half full

Thanks @Gronk

 

[Dingus6772]

Thanks @Gronk

I could tell it was half full because once I opened to drain, 25 gallons spilt out

 

[Gronk]

Well, since this started after the new pump, then you need to look at the installation. Sounds like there is an air leak on the suction line that the pump can't overcome after half tank. Either that or the pump itself has an air leak and/or is faulty.

 

[Dingus6772]

I bought the RV used and it had been sitting awhile and the pump wasn't working so I replaced. I will look at what you suggested. I really appreciate your advice. Thanks a bunch

 

[Gronk]

That changes things a little more. Now you are going to have to inspect the whole line from the tank to the pump. Hopefully it won't be terrible hard to do.

 

[Dingus6772]

Ok, gotcha. I got this! Thanks