how often do you service your grundfos pump?

i'm having a ch2-50 pc10 and been using it since 2010.

any reliable grundfos serviceman to recommend?

you will need to get an electrician to pull a wire there.


for my case, it's not noisy, but there's a humming sound. It could be that because the pump is sitting on the wooden planks instead of on the concrete.

Been using my pump since 2010.
Do i need to get someone to come service it?

Can anyone here recommend a good Grundfos installer?

If not all bathroom is always use at the same time, better to get smaller pump.

I have 5 bathroom. And never use 5 at the same time. The most is two. But I bought a pump which cater for about 4 bathrooms. Mistake. The water piap at the joints had water leak problem, like once every year due to the pressure.

I using this...Grundfos ch2-50pc. Not sure how many HP.

I am going to change it to a smaller pump.