Replaced my ch2-50 with cm3-5pm1 pump, CH2 been running fine from Dec-2011 till early last year, than occasionally trip, need stop start, and after drag for 1y+, finally replace. Not bad for a pump with 0 caring for 7+1years

Got it at JF Home, cheaper than many places. You can get it cheaper on shopee, around 1,330, something you get free shipping, some seller even sell below 1.3k



This post has been edited by weikee: Dec 21 2019, 10:26 PM

Hi experts, i have a question for grundfos water pumps. My friend is facing an issue with his tsunami pump. During the water rationing days few months ago, his water tank went dry and empty.

When water starts to re-fill the tank, the water pump will not automatically pump water. The user has to go up to the pump in the rooftop and manually press the reset button for it to work again.

Does CM3-5 PM1 comes with auto-reset function? or do i still have to manually reset it?

Using the cm3-5pm1, just had my water tank wash and refill...pump not working after re-fill tank, tried reset manually but still not working

This post has been edited by ryuken74: Jan 12 2020, 03:00 PM

You have to prim the pump. The presence of air trap inside could cause it to stop. Check the manual how to do it.

Guys,

I was thinking to put my water tank(single storey house) from roof to the ground.

Question:-

1. Is Grundfos Scala 2 can leave outside(open area)?
2. Can it withstand with our weather climate?
3. What is the maximum hp?
4. Is the hp enough to boost water from ground to all bathrooms(2 bathrooms). Can't find it from the datasheet.

Please advise. Thanks.

1. yes can
2. yes
3. 0.67hp
3. yes can

How about uni-e 10-2 ? Is the pressure of 2.5bar good enough ?

Anyone can share the contact for repair services?
My CM-PT only last for 4 years and now totally no function at all, need to call for checking.

you have how many bathrooms? usually house hold unie 5-4 or 5-5 only

10-2 got high flow buy low pressure

my plumbers are still off til now, eziers way remove the tank n pressure control, convert to PM

This post has been edited by zheilwane: May 5 2020, 11:31 PM

Thanks, I called their customer service and managed to repaired within same day.

Double storey with 2 bathrooms upstairs and garden water host required water pump serving. What is your recommendation ? My current unit Wilo MHIL503-E-1-230-50-2 failed a few rounds with repaired. The repaired fees is killing. I am thinking it is time to replace.

What is your recommendation ?

The water pump very hard to trigger whereby I need to on a lot of water tap to trigger like made person then only it start to work. Now totally not working at all even though i press reset button a few rounds.

Could you please help ?

u can get grundfos cm3-4pm1 (3.6bar+-), good enough for 2 bathrooms. but if u wan a little more power and get cm3-5pm1 (4.6bar+-)

if wan something value for money can also consider teral ab25x255tpc similar spec to grundfos cm3-5pm1

Hi guys,

Want to ask if anyone here experiences everytime water pump start, the whole discharge pipe shake like massive vibration (whole house can hear)

House equipped with solar system with grundfos water pump. The problem happened on both hot and cold water. It only happened after 5 years since we move in, before this everything works well.

Anyone please advice what is the problem it be.

Thanks.

got water rationing in your area recently?
possible got air or hot water pipes vibrating above ceiling, need to tie them or fasten them, nd to really climb up ceiling to observe where the noise is from, if cant then nd to hire a professional plumber to check

Hi bro,

Nope as I recall and tangki never been empty before.

Yeah I also assumed air in pipe/pump like water hammering everytime it started but back to normal after 1-2 sec of vibration. Feel very annoying. Called normal plumber checked and tightened, problem still not solved.

U got any pro plumber contact to share?

Thanks

Hi water pump experts,

I owned a 2 storey house with 3 bathroom. I would like to ask a few question:

1. My house water pressure right now seems to be ok from the direct water to the kitchen sink, washing machine and also to fill up the tank at rooftop slab for now. The neighborhood only have half resident for now, and maybe by next year every resident will start living in the area, will it effect the water pressure to my house?

2. Both of my second floor bathroom have a very low water pressure, so everytime I need to take a shower I need to run downstairs for shower. A plumber recommend me to setup a waterpump at the rooftop near to the tank so that it can give more pressure to the water for my upstairs bathroom. After Ive done the power point for the rooftop suddenly he changed his mind and said that it is dangerous if I put a waterpump at the rooftop slab (it may flooded the area if the waterpump is broken) and hard to maintain. So Im kind of puzzled and trying to research if it is true that waterpump should not be at the rooftop or not because if its true then Ive wasted money from his previous recommendation. So It will be very much helpful if you guys can share your experience with me.

3. Other plumber suggest to bypassing direct water to the tank and used direct water all over the house and use only one waterpump at the car porch area which I cannot imagine on how the system works. Is it better this way? or I just put a waterpump at the rooftop is enough?

4. Was about to buy a hitachi water pump until I stumble into this forum, don't know about this brand but I wonder what is the best pump to cover a two storey house with 3 bathroom. Thank you in advance

Illegal to pump directly from main meter. From water tank then to pump then to washroom. I use grundfos scala 2 so I can adjust the pressure that I wanna run. If scared hard to fix, leak etc. then find a way to either go up to the water tank, or put the pump where you can access.

get teral ab25x254tpc, install next to water tank. all the plumbers act smart ask customers do this, do that. The best solution, is water pump. If modifying the pipes can get strong pressure nobody would buy pumps d right.

I encounter many customers, paid plumbers to modify pipe, later bought pump from me and nd to modify back again waste $$

Google some review on hitachi before u buy

This post has been edited by zheilwane: May 10 2020, 10:34 AM

Thank you for the info. Didn't know that its illegal to pump directly from main meter. A few neighbors here already use water pump from their meter so just I`m curious.


Thank you for your recommendation. Is teral a good brand as grundfos? I tried to buy once item that would last very long type of guy. Is that teral ab25x254tpc enough to support all 3 bathroom at the same time? My house tend to get many visitors from my spouses, they like the free room while on vacation. As for grundfos which model should I go for? I live in Perlis, hard to find good plumber here. Do you anyone that can setup the water pump here? Thank you again for you help