If the switch on your existing pump is not integrated into the pump you could swap out the old switch for a new one. Not sure if he still posts here but there was a plumber Mark that used to recommend the using the SJE Vertical Master float switch. If you need to get a new pump, get one that does not have an integrated switch. If your current pump has a piggyback plug for the switch then you should be able to just replace the switch. I think one of the recommended sump pumps is a Zoeller without the integrated float swtich. I have a 26 yo Hydromatic pump that had a diaphram switch where the switch failed ages ago. I replaced it with the Vertical Master switch and it has been working fine since. I'll admit that it does not get that much of a workout since it only pumps out condensate and humidifier overflow. I found mine at HD with a different name on it. I'm not sure if their current stock is the same switch since HD is changes things around from time to time.