Welcome Guest ( Log In | Register )

55 Pages < 1 2 3 4 > » Bottom
Bump TopicReply to this topicRSS feed Start new topic Start Poll

Outline · [ Standard ] · Linear+

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

JinXXX
post Apr 15 2011, 02:20 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 2,470

Joined: Feb 2007
From: Uarla Umpur



QUOTE(zheilwane @ Apr 15 2011, 01:25 PM)
Jinxxx u seem to know a lot about pumps, why would u ask me about flowrate at the first place?

Another way, install the pump first, mana bocor den fix where. But quite risky, i installed mine after 10 years also, luckily two areas bocor only.
*
yeah been doing tons of research on pumps since planning to get one...

my flowrate, i was refering to "tap" not pump as pump's one can get from grundfos website the technical specification...

i check out some documents regarding what is the nominal flowrate for taps and sorts for malaysia but found nothing on syabas website and come across a very interesting article/documentation/guide by singapore's PUB..

http://www.pub.gov.sg/wels/Documents/Revis...equirements.pdf

they rated norminal tap flow rate should be abt 6 liters/min (in another words , on tap to the max, in 1 min should output/give about 6 liters)

from what i've read so far, the "ideal" pressure for home should be about 40PSI = 2.80 Bar = 280KPA

i'm guessing a double story house is about 30 meters the CH4-40 @ 30 meter puts out abt 0.5 / 0.6 liter a second , that is you pump UP from a ground floor water tank.. but if ur water tank is on the roof .. i'm not sure how to see or calculate

so 0.5 liter a second = 30 liter a minute.. so for a nominal tap flowrate of 6liter/min , CH4-40 will give you support for abt 6 open TAPS maybe minus 1 or 2 taps, if got shower rain/rain shower...

ps : this is my opinion and based from what i've read and understand and calculated, ONLY , i don't own the pump YET.. tongue.gif, those that have actually used it can give a better insights... smile.gif

This post has been edited by JinXXX: Apr 15 2011, 02:22 PM
zheilwane
post Apr 15 2011, 04:30 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
wow, r u an engineer? I m amazed with ur research. Actually quite hard for consumers to calculate and factor in friction loss, gravity and etc. I went to many houses and tested Grundfos CH2-50PC, the pump is very powerful. SO, if u trust me, get CH2-50PC would b more than enough for most houses
weikee
post Apr 15 2011, 11:51 PM

10k Club
********
Group: Senior Member
Posts: 11,757

Joined: Jan 2003
QUOTE(maul @ Apr 15 2011, 10:34 AM)
I got a question. I have 2 bathroom upstairs and running direct water from meter. So if one bathroom flush the toilet, habislah cannot take shower in the 2nd bathroom. I am thinking of installing grundfos but told by plumber that me house is >10 years old so afraid the piping might not tahan and leak or burst. Told better to change pipe. Pipe either outside the wall which looks ugly or kena hacking wall and tiles.

You think plumber is correct?
*
Direct from source usually the pressure are very high. My current house is double story, the direct pipe to top floor is very strong.

Some house get weak pressure because the incoming pipe already got build up inside. Or installed sand water filter which some brand (older version) reduce the pressure to ensure the tank don't burst.
maul
post Apr 16 2011, 08:31 AM

New Member
*
Group: Junior Member
Posts: 15

Joined: Dec 2008


QUOTE(zheilwane @ Apr 15 2011, 01:25 PM)
Jinxxx u seem to know a lot about pumps, why would u ask me about flowrate at the first place?

Another way, install the pump first, mana bocor den fix where. But quite risky, i installed mine after 10 years also, luckily two areas bocor only.
*
I am concern dont know where bocor and after down stair ceiling start having stain. Experience once when I renovated my toilet. Idiot contractor told me no need water proofing. Then start seeing stains on ceiling downstairs. Called him and came once to fix but didnt stop . Subsequently dont pick up phone. Have to call another contractor and told have to re tile with water proofing. Almost double my cost.

So coming back to waterpump, seems its true and only way is to change pipe...
aero
post Apr 21 2011, 09:46 PM

Getting Started
**
Group: Junior Member
Posts: 116

Joined: Sep 2006
From: PJ


QUOTE(zheilwane @ Apr 7 2011, 10:54 PM)
Usually i would advise my customers to prepare a switch whereby u can turn on/off the pump easily for maintenance or if u r going out and etc. I can include installation but do not cover preparing the wiring or switch. YOu will need to get your wiremen to prepare a socket point for my men to plug in the pump. U will need to drop by my showroom for detail explanation of the installation as it is not as ez as installing the inlet n outlet point. Installation takes around 2-3 hours.
*
Hi zheilwane,
1. When water pump is off, is the water supply will stop or it will still flow but without the water pump pressure ?
2. Can you give me your shop location and business hour?

Thanks icon_rolleyes.gif
zheilwane
post Apr 21 2011, 10:50 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
1) When u turn off the pump, u will still get water but without pressure. Usually a good plumber will do a main water by pass. For more info, u need to drop by my shop

2) My shop is in kepong, click on my signature below.
Business hour is monday - saturday, 9am - 6pm
areankim
post Apr 24 2011, 12:00 AM

"Live Life Cool"
*******
Group: Senior Member
Posts: 3,594

Joined: Jan 2003
From: Planet Earth



zheilwane - draw 1 siap siap for me tongue.gif gonna see u next month. Painting almost done...

time to get water heater, water pump
zheilwane
post Apr 24 2011, 12:01 AM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
I have many copies here ahhaha, give it out for FREE to our homedec customers last year.
KrankZ
post Apr 24 2011, 12:10 AM

Getting Started
**
Group: Junior Member
Posts: 83

Joined: Nov 2007


bro how long is the warranty?

zheilwane
post Apr 24 2011, 12:20 AM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
2 years now, previously 1 year
jessejess31
post Jun 6 2011, 11:15 AM

New Member
*
Group: Junior Member
Posts: 40

Joined: Mar 2009


QUOTE(zheilwane @ Apr 24 2011, 12:20 AM)
2 years now, previously 1 year
*
Hi,

I have two bathrooms upstairs and 1 bathroom downstairs. I do not have any rainshower as well as all three bathrooms will be using instant water heaters. There is one dry kitchen and 1 wet kitchen. Should I be using Grundfos CH2-40pc (0.50hp) or CH2-50pc (0.75hp)? I was told if the hp is too great for the house, there will be leaking problems.

Can advise?
zheilwane
post Jun 6 2011, 11:48 AM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
You will not have leaking problem unless ur plumber did not connect the pipes properly. If they did not do a good job, a low HP pump will also cause a leak. There are bunglows using 2HP pump and there is no leak, so there is no reason that 0.75hp or 1HP pump can cause a leak.

Just get CH2-50PC as the price is RM 10-20 more exp than CH2-40PC only
jessejess31
post Jun 6 2011, 05:07 PM

New Member
*
Group: Junior Member
Posts: 40

Joined: Mar 2009


QUOTE(zheilwane @ Jun 6 2011, 11:48 AM)
You will not have leaking problem unless ur plumber did not connect the pipes properly. If they did not do a good job, a low HP pump will also cause a leak. There are bunglows using 2HP pump and there is no leak, so there is no reason that 0.75hp or 1HP pump can cause a leak.

Just get CH2-50PC as the price is RM 10-20 more exp than CH2-40PC only
*
May I know where is your shop located in Kepong? Do you have an email address I can send my pricing request to?
zheilwane
post Jun 6 2011, 06:36 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
For pricing, please join us in facebook n PM me. YOu could also view our promotion album after joining us in FB
http://www.facebook.com/profile.php?id=100001245528914

Here is my location map
http://maps.google.com.my/maps?f=q&source=...4,0.001725&z=19
JoJo(0^0)
post Jun 7 2011, 03:07 PM

New Member
*
Group: Junior Member
Posts: 32

Joined: May 2011
QUOTE(manufreak07 @ Apr 8 2011, 11:53 AM)
just bought one from zheilwane  as well ...
CH-PC for 4 bathrooms ... more than enough ... i think it’s over power .. i use to just switch on half of the tap water
*
Hi just wonder hows the electricity bil after using this pump?
zheilwane
post Jun 7 2011, 08:12 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
the pump only consumes 0.5-0.6kW while ur water heater is 3.6kW. If u do not turn on the water, the pump will not operate and it consumes very very little electricity.
toffeeman
post Jun 8 2011, 04:54 PM

Getting Started
**
Group: Junior Member
Posts: 215

Joined: Jun 2009


I heard there is a new series of models from Groundfos coming into the market. Is that true?
zheilwane
post Jun 8 2011, 07:43 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
yes CM pump to replace the existing CH pump
JinXXX
post Jun 8 2011, 07:48 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 2,470

Joined: Feb 2007
From: Uarla Umpur



QUOTE(zheilwane @ Jun 8 2011, 07:43 PM)
yes CM pump to replace the existing CH pump
*
will be cheaper or priced around the same ?
zheilwane
post Jun 8 2011, 07:49 PM

Look at all my stars!!
*******
Group: Senior Member
Posts: 3,229

Joined: Jan 2008
From: Builders Hardware Enterprise 0362572412
should b the same

This post has been edited by zheilwane: Jun 8 2011, 07:50 PM

55 Pages < 1 2 3 4 > » Top
Bump TopicReply to this topicTopic OptionsStart new topic
 

Switch to:
| Lo-Fi Version
0.0772sec    4.24    6 queries    GZIP Disabled
Time is now: 23rd September 2018 - 12:58 PM