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 [WTA] Grundfos Water Pump, CH-PT or CH-PC

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sapphirejohn
post Jan 30 2014, 07:35 AM

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Dear all,

I couldn't find the model at the Grundfos website.
I only found CM series models. I am very confuse because Grundfos has many types of pumps.
How about Hitachi brand?
sapphirejohn
post Jan 30 2014, 09:17 AM

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Hi zheilwane,

I don't know. I went to a 2 hardware shop selling Grundfos water pump. Both of them seems like don't know what they are selling.
I ask which one suitable for 3 bathrooms double storey terrace house? all can use. idiot answer. cry.gif
Like that I also can answer lar. tell me the differences.
My house is new but the water pressure is extremely slow. No water in some tap if open concurrently.
I complaint but the developer said is due to air inside the pipe.
Will get better after usage. Is it true?

QUOTE(zheilwane @ Jan 30 2014, 08:54 AM)
Grundfos main pump for household is CM pump. What model u r looking for? I notice other shops are confusing customers by giving gemini or advertising grundfos logo but model given is another brand (misleading customer)
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sapphirejohn
post Jan 30 2014, 12:14 PM

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The contractor said if I install water pump. I need to install also the water tank.
If not, my neighbour will suffer water pressure loss when my pump is on.
Is it true?

QUOTE(zheilwane @ Jan 30 2014, 08:54 AM)
Grundfos main pump for household is CM pump. What model u r looking for? I notice other shops are confusing customers by giving gemini or advertising grundfos logo but model given is another brand (misleading customer)
*
sapphirejohn
post Jan 30 2014, 03:03 PM

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But the weak water flow is direct from the main pipe wor...
The reno contractor said something block inside. The developer said is air. vmad.gif

QUOTE(zheilwane @ Jan 30 2014, 01:13 PM)
you house should have a water tank already, thatz y ur water pressure is weak
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sapphirejohn
post Jan 31 2014, 08:19 AM

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For Malaysia,

How many pipes are connected directly to the government service pipe?
Only the kitchen sink?
HOw abt ground floor bathroom?

QUOTE(zheilwane @ Jan 31 2014, 01:19 AM)
try turning off your main water meter den go test to c u have water in the bathrooms or not
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sapphirejohn
post Jan 31 2014, 09:07 AM

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Okie... icon_idea.gif

QUOTE(zheilwane @ Jan 31 2014, 08:56 AM)
usually only kitchen, garden and washing machine area. THe only way to test is to turn off your water meter as suggested previously
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sapphirejohn
post Feb 5 2014, 11:36 AM

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Hi zheilwane,

I tested my house. Only the kitchen tap is direct from the service pipe.
Currently doing extension for wet kitchen.
Normally the piping will direct from the service pipe or from water tank?
I went to search for pump just now and the shop suggest me WALRUS water pump.
Is it reliable?

QUOTE(zheilwane @ Jan 31 2014, 08:56 AM)
usually only kitchen, garden and washing machine area. THe only way to test is to turn off your water meter as suggested previously
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sapphirejohn
post Feb 8 2014, 01:15 AM

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Owh...Thanks for the info ya. rclxms.gif
My house water pressure is extremely low.
Even nobody has move in yet!!!
If everyone move in, I think there will be no water supply.
The developer said there is air trapping inside the pipe that cause low water pressure.
Is it true?

QUOTE(sovietmah @ Feb 7 2014, 10:43 AM)
Install after water tank.
If you install after meter (before tank) consider illegal.
But i think if one row of houses contain 10 houses,
8 houses install pump after meter before tank, then will only affect the other 2 houses.
the main pipe outside is bout 8 inches diameter, ur house one is 1 inch diameter, i am sure it wont affect much unless everyone install pump after meter before tank.
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sapphirejohn
post Feb 11 2014, 04:53 PM

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The water pressure is ok now.
Its like chipsmore. Now you see, now you don't. mad.gif

QUOTE(jchong @ Feb 8 2014, 01:31 PM)
How can anybody in a forum without seeing/testing your pipes tell you if it is true or not?

It is something that might happen. If so, then ask developer to clear the air. Or just read up on the Internet, just google for the info.
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