Hi

I had 2 Scala 2 units installed one after the other given they kept breaking down, in a similar setup as described above ie after water tank to pump to smaller tank in the roof.

Now my second unit is also sounding like it is going to stop working.. very loud sound. Does anyone have any idea of a better pump to use? I picked the scala as it is an outdoor unit but i have it installed in the main gate pillar which is hollow so maybe an indoor unit is also ok?

Any suggestions is much appreciated as i dont want to keep claiming warranty every 9 months....

Thanks!

My experience is poor. 1 unit lasted one year plus and sent back for warranty. Next unit is dying...I have the normal CM one in my roof. Works ok.

Coz the main goes to a 1500L water tank which is quite a distance away to the main pipes going back up to the upstairs tank which then provides water to majority of the house except the kitchen one which is from the main (not my design - was built like that). So need the ground pump to pull the water from the water tank through the filter and up to the small tank in the roof. Else i have to redo all the piping which is a no no.

So now looking for a reliable ground water pump since Ive given up on the Scala 2.

This post has been edited by Jehoi: Mar 24 2019, 03:34 PM

Yup i have setup the piping with a bypass and it is being used at the moment given the pump is not working. Yes i could do 2 which means i remove the ground pump right but the water pressure isnt great and not sure if it will get from the 1500L tank to the main water tank 3 stories up.

No water filter prior to the ground pump but the water in the big tank isnt stagnant all the time as water flows through there to fill the small tank in the roof. Nonetheless I empty the tank every year for a clean.

Anyway the scala 2 has an issue with water leaking into the bearing i saw online and that sound im hearing is exactly what is coming from my pump.

Maybe option 2 will work but im not sure given water pressure is poor.

But thanks for the input...

Malaysia boleh and specifically Johor Bahru.....good luck to me.

Thanks. I will try and do later. I spoke to the shop and they said one batch of Scala 2 received in late 2017 is faulty. Many many many returns. Grundfos technicians will come and replace the unit for me. I will try one more time.

The water tank is around 3m from the pump and the install is main -> water tank -> pump -> membrane filter -> house piping etc.

Only thing ive noticed is why did the plumber install the filter after the water tank. Sounds odd to me so Ive asked him to redo this as well...any input here from sifus would be appreciates.

But as per discussion above the water after going into the tank has much less pressure hence needs a ground pump. Triple checked this.

Thanks for your comment... will the water tank water being unfiltered then impact the performance of the ground pump in the long term? I clean the tank and empty it once a year....to be honest before i put in the ground pump, I just do normal backwash using the pressure from the main which was ok for this purpose....also the water filter guys come yearly and clean the membrane as well.

So if the water pressure is ok and the membrane is chemically cleaned yearly, is it better to then have clean water in the water tank and install the filter before the tank so the pump performance is better and lasts longer?

This post has been edited by Jehoi: Mar 25 2019, 03:37 PM