Ejector pump tank full of water, after replacement with a new one, why?

In my basement, there is an ejector pump to pump water to the sewer. It pumped water very slowly. I called a plumber, and he told me I need to replace the ejector pump. He charged me $550 for this job.



Two days after, the pump is not working, the water continued to go thru the pump and won't stop. We had to turn off the pump to stop the continued water pumping.



The plumber came again today and he said there are two problems, that he did not diagnose before:



1) In the room where the water softener is, there is one pipe that is connected to ejector pump, there is a blockage in the pipe, which slowed down the pumping water out to the sewer. He has fixed this blockage today.



2) The 2nd issue is the container/tub (ejector pump tank) was full of water, and he is not sure why that happened. He said the tank was not full of water, the first time when he came last week to give estimate. But when he came the 2nd time to replace the ejector pump, he said the tank was full of water, so as today. He asked us to keep an eye on it, in case the tank is full of water again.



I do not like his answer, that means he does not know how to fix it, and charged me with $550. Can you help with this situation. Do you know what could possibly wrong to cause the ejector pump tank to be full of water, even after he replaced with a new ejector pump. ThanksEjector pump tank full of water, after replacement with a new one, why?there is a float that controls how high the water gets before the pump kicks on and how low it gets before pump kicks off...if the tank is filling up past the normal full line then the float system is bad....the blockage was probably the only problem you had originally...it is possible it wasn't full the first time he came because the pump was running and since it was blocked off partially it could not shut off since it couldnt remove the water correctly....after he removed the blockage and replaced the pump all that controls anything is the floats that control the pump kick on and off