Electrical Pump Advise sought for DIY

[OnlQQker]

I removed the pumps from an extremely large celler 4 years ago and replaced them with a Saniflo.
I also was in a gym where one saniflo dealt with the 1 female toilet/ 3 showers/ 2 sinks and another one dealt with the same in the male changing room.

They are cheap to run and never once played up in over the 3 years I was in the gym! Not much bigger than 2 brief case's put together!

 

[Megawatt]

Hi guys,

newbie here, please go easy!

I've got a query regarding an existing installation on a pumping station pump issue, which I'm hoping you can help with.

Our house is off mains sewage, and as such we have a sewage treatment plant, and a pumping station. In the pumping station we have 2 pumps, a new one installed last week, and one that has been in about a year. When the older pump starts to pump, due to the float being lifted, it trips the power to our garage circuit.

The power to the sewage and the pumping station should be protected by a 30a RCD, however when the pump is active, its tripping the power to the garage, rather than just tripping the RCD switch. Would anyone be able to advise on why this is happening, and how we can ensure that its the RCD in the garage that trips?

Thanks in advance
Tony

Tony I would think that the lift station should have its own circuit not on the garage circuit. I guess when the pump starts it’s to much inrus current that’s tripping the breaker. What size is your pump ?

 

[Floody]

You should have a data plate on the pump itself, giving you the starting current and the running current, amongst other info. Chances are its tripping on high starting current. Pumps and motors starting current can be 3 to 8 times its operating current. Let us know