Would like to ask LYN forummers' opinion on which Grundfos pump to use for my house..
My house is a 3-storey terrace with 4 bathroom, 4 water outlet each.
All bathrooms and dry kitchen's water is supplied from the water tank on top of the roof.
My problem is that the water pressure is pretty low on the 3rd floor.
I would like to install water heater in all my bathrooms.
I haven't decided whether I should install 3 water heaters with DC pump or Grundfos water pump & water heaters without DC pump.
Local kitchen accessories supplier recommended me CH2-50PT for RM16XX.
Therefore, I would like to ask your opinion whether CH-PT or CH-PC or any other Grundfos model which able to solve my water pressure problem. Or just water heaters with DC pump?
Thanks.

I'm using Grundfos, and its very quiet and reliable. Forget about other brands and just use this brand, although I think you can get it much cheaper. I think I paid about RM 1250 about 1 year ago, but I must admit I'm not very sure its the same model.

I agree. Grundfos is significantly better than other brands in it's price bracket. I'm using CH-PC now for my DS link house. Water pressure is good for both floors.

yup, grundfos is better, tatz y it is more exp compared 2 other brands. Been selling them for many years, only focus on grundfos as other cheap brands will eventually give us headache (complains from customers)

Most would get the CH-PC model as it is cheaper and maintenance free. CH-PT model is more exp and need to pump air once a year and servicing around 3 years once. Most ppl would recommend to use CH-PT to make more profit and also to earn ur servicing fee every year.

Many shops will ask u to get CH-PT and will not advise u about the maintenance part. After 1 year+ if u dont pump air, your pump will start giving u problem. Since it is after the warranty period, u will call them to fix it. Usually they will need to change the tank (ard RM 300+) then advise u about the yearly maintenance thing. So, you will call them once a year to service the pump.

This post has been edited by zheilwane: Apr 7 2011, 09:06 PM

how much for the pump now? can post pics and price?

jus drop by my showroom for price. Not convenient to post the prices here.

Click on my signature for facebook & location map

zheilwane, do u cover installation for the pump if purchase from you?
to install the pump, we need to install wiring point too?
in common practice, where normally the on/off switch to be located?

tq

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.

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

Yeah, CH2-50PC is very powerful already. If u are using big rain showers like 12" and above, then u get CH4-40PC. Whether it is overpower or not, really depends on individual preference. Some might feel it is too strong but some feel it is not strong enough. For me, it is just nice. The reason many ppl install a water pump is to get strong water pressure to have a relaxing and comfortable shower after work.

This post has been edited by zheilwane: Jul 7 2011, 01:23 AM

I am renovating my sub-sale Double storey house. Just changed the poly to ss tank on the roof. Need you advise should I install the pump at the water meter -ground floor or at the Tank outlet so that the shower press at top floor would be good and the whole house piping press good. Which model do you suggest and price. Have 3 bath at top and 1 at groundfloor. How the pump cut in and out. If it runs all the time, worry the pvc pipe might leak.
Thank You. Can PM for confidential price.

Can you please PM me the best price for CH-PC with installation? Thanks....

usually what is the ideal.. water pressure..

and flowrate for taps/ water outlets eg pipe and sorts ?

Actually, Grundfos CH2-50PC is good enough for most houses.
- 0.75 HP
- Max Head : 45m
- Max Flow rate : 56 l/min

But if u are using big rain showers (10" and above), you might wan to get CH4-40PC to increase the flowrate.

This post has been edited by zheilwane: Apr 14 2011, 08:04 AM

wah, why all the spec like overkill spec one..

btw MAX head means what ? 45m = 45meter ??

what u mean overkill spec? U asked about flow rate so i thought u wan some technical data.

Yes, can pump up to maximum 45meter high but at that height, the flow rate is very low.

Briefly, this pump is sufficient to supply strong water pressure upto 5 person showering at the same time using small rain showers (below 10") or instant heaters.

Definitely install at the tank outlet. Installing pump after water meter is illegal and will be fine. Need more info on water pump, come and look on this thread.
Water Pump Specialist

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?

yup....

usually is like that... one.. unless u take measurement of the original pressure , cause you said direct...

then set ur pump to be similar.. then should be no problem.. usually the leak will be at the joints/fitting areas...

its always a 50/50 risk.. thats why is best to get the right pump that gives the right amount of pressure..

else will bocor here and there...

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.. , those that have actually used it can give a better insights...

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

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

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.

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...

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

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

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

time to get water heater, water pump

I have many copies here ahhaha, give it out for FREE to our homedec customers last year.

bro how long is the warranty?

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?

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?

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

Hi just wonder hows the electricity bil after using this pump?

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.

I heard there is a new series of models from Groundfos coming into the market. Is that true?

yes CM pump to replace the existing CH pump

will be cheaper or priced around the same ?

should b the same

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

Hi Zheilwane!

For my single story house with 2 baths, what water pump capacity should i look for? Please advise.

haha u can go for Grundfos CH2-50PC, good enough. Finally consider to get a water pump? ahaha

considering ler...but cant afford Grundfos unless u slash 50 per cent off...haha. But on a serious note, how do i know what power capacity to sue. from what i read, if too much power the pipes can crack! Hope u dont mind sharing ya opinion.

did u c the demo in my showroom? that pump is 1.5hp pump and my PVC pipe + flexible hose didnt crack or burst. Pipes can withstand minimum 5 times the pressure for grundfos pumps. THe only problem is, did ur plumber connect the pipes properly? If u got a good plumber, then do not worry about leaks or cracks.

Just recall that u gonna go for hitachi pump, thatz really 50% Grundfos price. Choosing a pump is like choosing ur toilet bowls, why u didnt go for Cheap brandless China toilet bowl which cost 50% cheaper than those Johnson Suisse toilet bowls that you bought from me? You r gonna stay in the house for many years and not 1 or 2 weeks, so ofcoz u wan to get something better and wouldn't give u headaches.

You mean the Grundflos is better than Hitachi? Can share your experience?

of coz. Grundfos is among the top brand in water pump. U ask contractors or plumbers about grundfos and you will know why grundfos is good.

grundfos is good... just that the price is , if have money better take grundfos, can last long long...

if no money .. have to opt for other alternative...

grundfos pump for house can generate max 10bar pressure, thats why the controller is there to controller the pressure aka on/off switch

if ur pvc piping is class 7 PVC pipe then can stand up to 32 bar for 15mm PVC size...

problem is the joints, if your plumber did it correctly then no problem else might leak abit...

I have a question...

my water tank is on top exposed to the sun, if I were to install the pump,..i need to install a power Socket... the socket will be
exposed to sunlight and rain.... do I need to install something to cover it ?

yes, u will need to get something to cover ur pump n also other electrical items.

Pump can be in side the house. But if can't you need to run the cable from inside to the pump outside. Usually socket is not required, cause the on/off switch are from inside the house.

usually we would advise customers to prepare a switch to turn on/off the pump from downstairs but prepare a socket point at the top. So, when the person who install the pump or dismantle it next time, can just easily plug or unplug the wire. Grundfos pump comes with a socket.

Zheilwane, you got a point too.

Can install outdoor socket if that's the case.

My house will not have the socket, i will have to take out the plug, cause it install will be hard screw in a protective box. The box i have cost more than any socket. Is for heavy duty industry usage

but my water tank is located above concrete slab area....which is exposed to the hot sun and rain... I wonder how i should
install the power socket and where to put the pump...

1) If ur tank is near to your roof, u can install the pump under ur roof.

2) You need to get ur contractor to do a shelter or buy a box to cover your pump.

just curious,

those polypipe/hdpe pipe 25mm, what is the approx market price? ,

sked kena chop when i go buy a few meters...

Those who considering to buy pump, make sure to get someone to check whether the pump suitable for your house or whether your pipe strong enough or not.

Mine is a 9 year old house,
just bought a Grundfos CH2-50PC unit, turn on on only water leaking from my kitchen, downstairs bathroom and utility room. Then the person in charge of installing it said that those pipes leaking were out of his control and asked me call plumber to fix it.
These guys supposed to be the official installers for grundfos somemore, can be so irresponsible one meh?

Now my ceiling all got pactches of water, and I have to pay additional dunno how many hundreds to a plumber to come investigate and fix the problem.
Later if fixed also, turn on pump got phobia scared the whole roof come down in water!

If new house 95% no problem but for old house u will need to check first as some of them use metal piping which will rust and could not withstand high pressure.

About the official installer for grundfos being irresponsible, he did not run the piping for ur whole house, he only install the pump for u. So, if there is leakage, it is not his fault and duty to rectify the problem.

What u can do now is get a good plumber to check where is the leak and to rectify it. U have this problem either they are using metal pipes or the previous plumber who installed the piping did not connect the pipes properly.

whats the default stop pressure for the grundfos units ?

since they have those micro-controller/pressure sensor ?

40psi........

thats like 2.8 bar,

usually those new polypipe can stand until 12 bar PN12.5 while the fittings cam go until 16BAR

old piping is old piping hehehhe

Thanks zheilwane for an opinion from a vendor standpoint. I can accept that but I would have thought as an official installer, he would have advised me on the risks and help to do some preliminary checks.
His installation of the pump also leaves much to be desired, it left three water patches on my 1st floor ceiling, need to repaint the ceiling now.

Anyway, I don mean to rant here, just wan the others to be aware of these so that they don go through the same pain as me.

actually, it is the responsibility of the grundfos dealer to explain it to u before u purchase the pump. When forumers PM me that they wanna install a pump for their old house, i do inform them about the risk before buying.
Did u tell the shop ur house is 9 years d?

Btw, if u did do some research online or read though this thread, there is a forumer who has the same problem as u but not as serious as urs.

FYI, it is impossible for plumbers to check whether the pipes could withstand the pump's pressure as the pipes are concealed.

This post has been edited by zheilwane: Jun 18 2011, 11:35 PM

Wiring and piping can't really have 100% check. Even new house have problem due to poor workmanship, and cutting corner of material.

I am only using a China made 0.5hp pump. Never have problem for 4 years now.

Anyway, just bypass the water tank and have the water supply go direct . Install a pressure tank after the pump if you have the budget. Tell your piping contractor, they should understand what the pressure tank is for.

Actually it's illegal. According to syabas guideline, u can only tap water after the water tank. Bypassing the water tank would risk contaminating syabas water source.

because of 1 person.. most of the houses on the same pipe has less pressure...

another thing that i notice if you hook ur pump directly, and if there is a water leakage and there is sand/rust and etc bye bye to ur pump

and also, u could be FINED...

I have a question, if we 'off' the power of the water pump... will the water continue to flow down ?

yes it will

Bro, do u offer any services to check whether my house piping can handle the water pressure ?
mine is a newly completed house in puchong puteri ... one of the residents there experiience...valve burst
(is plastic valve provided by the developer)

can we adjust the water pressure level ?

if it is a new house, and it burst, u can get the developer to rectify it. It is consider as their defect.

There is no way to check ur piping.

Zean
Can we reduce the pump pressure for the Grundfos pump? I cant remember which model I have, but it is the one without the tank...

if the pump got function to adjust the pressure level...will be good ..

Actually Grundfos do have a model that can control pressure. It is called Grundfos UNI E series.
This pump is like a mini system pump, it has a control panel that will adjust the water pressure level according to the preset level. Originally it is set to run at 2.5bar but you can adjust it to 2 - 3.5bar.

How this pump works?
The control panel controls the speed of the pump, if one person turns on the tap, it will run slowly, when another person turns on the tap, the pump will operates faster. Therefore, you will have constant pressure all the time.

A normal pump like the CH models will operate at maximum speed when someone turns on the tap, when another person turns on the tap, the pressure will drop a little.

Just drop by my showroom if you wanna have a look at the demo. For promotions, please join us in facebook
http://www.facebook.com/profile.php?id=100001245528914

This post has been edited by zheilwane: Jul 1 2011, 11:35 PM

Bro, how much this model cost ?

We have several promotions for Grundfos Water pump.
1) Package with Solar water heater.
2) Package with Joven heaters.
3) Package with water filter.

Just PM me and let me know which package you are interested with

Does Grundfos have DC submersible water pumps? am looking for the range Grundfos provide.

I only have these
http://www.dayliff.com/grandfos/BASIC%20LI...submersible.pdf

this seems like an AC pump. Do you have DC pumps that runs on 12V, 24V or 48V?

I m using hitachi pump, very noisy and also the pressure drops a lot when another person turn on the tap. Gonna move in to my new house soon and my contractor recommended Grundfos. Will grundfos have the same problem? any member can share their experience?

You can go for Grundfos CH2-50PC, it is sufficient to supply strong water pressure for 4-5 bathrooms at the same time. Grundfos is durable and silent.

You can get my promotion Grundfos CH2-50PC + Perfect Steel 10" Stainless steel filter = RM 2,250 without installation.

If u r looking for the best model, you can go for UNI E 4-50, it comes with a control panel, can control the speed of the pump. If u turn on the tap, the pump will start slow, then another person turn on the tap, the pump will move faster. Therefore, you will have constant water pressure and it will not give much pressure to your piping.

This post has been edited by zheilwane: Jul 5 2011, 10:40 PM

zean, pm me the price for UNI E 4-50 w/o installation. TQ

sure, PM u d

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Added on July 6, 2011, 12:17 amHere is the promotion
http://forum.lowyat.net/index.php?showtopic=1636923

for more promotions, please join me in facebook.
http://www.facebook.com/home.php?flyingspaghettimonster=logo#...100001245528914


This post has been edited by zheilwane: Jul 6 2011, 12:17 AM

how much would the UNI E 4-50 cost?
mind quoting me the following?
redo entire house plumbing (conceal versus expose) + pump + stainless steel water tank.
typical landed double storey house. 4 bedroom 3bathroom type.
thanks.

do you also sell stiefel ebron or something like that? interested to get their heater. no need storage tank. do you recommend this?

We use Grundfos and find it quite good. Get the medium one is enough. If you get one too powerful and the internal water pipe in the walls are not made of copper, there's chance that the plastic may burst.

For reno work, u can try vinns 010-7970888, few of my LYN customers are using him, not sure about his pricing but so far no issues with his job. I only supply the goods such as Johnson Suisse toilet bowl & Basin, Hood & Hob, Sorento faucets and bathroom accessories and etc. For latest promotion please join us in facebook (only friends can view the album)
http://www.facebook.com/profile.php?id=100...100001245528914

FYI, if u r getting stiebel, you will need to run hot water piping just like storage heater. However, if u r installing a water pump like GRUNDFOS, stiebel is not sufficient to supply hot water. I tested it and the performance is not that good. A storage heater is always a better choice unless u do not have space to install it. For landed property, if u r going to renovate a few bathrooms to have rain shower system and to have storage heaters, it would b better to get a SOLAR WATER heater.

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Added on July 7, 2011, 1:18 amGrundfos CH2-50PC + Perfect Steel 10" Stainless steel filter = RM 2,250

UNI E 4-50 + Perfect Steel 10" Stainless steel filter = RM 3,950

Price is without installation.

If you need other stuff, just drop by my showroom and i will give a little bit more discount.

This post has been edited by zheilwane: Jul 7 2011, 01:18 AM

thanks.
i like stiefel is because it's tankless.
last time demonstrated stiefel on rainwater shower and still hot enough (to me lah).
can get instant heated water rather than:
1. waiting time to heat water for storage type
2. extra power consumption to heat unused heated water

how much is 3 stiefel compared with 1 'good and reliable' solar heater?
thanks.
PS: just sent an add friend request. cheers!

Just wanna share this with forumers.


If u ask contractors and friends, "Which is the best water pump?", 90% of them will tell you "Grundfos". So, you went out to survey and ask salesmen, "I am looking for Grundfos", most probably they will introduce you EP230PC. However, please be careful as EP230PC is GEMINI and not Grundfos. Gemini is a company bought over by Grundfos. This is to cater the need for those with lower budget.

As Grundfos's impellers are made of stainless steel, the pump is quieter, less vibration and more durable. Hence, the price is more expensive compared to Gemini which are made of composite material (plastic). If you wanna know more, just drop by my showroom in Kepong.

For more promotions and info, please join us in facebook
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This post has been edited by zheilwane: Jul 8 2011, 11:01 PM

which grundfos model with medium power that u recommend ?? heard there is a model where u can adjust the pressure...
anyone can explain how it works ?? how to select which pressure ?? even though my house is new, i am worry the
piping may burst if pressure too strong !

no such thing as pipe bursting. Just drop by my showroom and u can c the pump which can adjust pressure and also to get to know more about water pumps

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Added on July 10, 2011, 12:58 amWould you all be interested to know more about water pumps? What if Grundfos has a demo truck in Kepong, would u go and have a look? Please reply here, if the response is good, i will organize it.
Date : Organizing...







This post has been edited by zheilwane: Jul 10 2011, 01:05 AM

what is the price difference between gemini and grundfos

that is for u to survey as i only sell GRUNDFOS.

just bought my Grundfos water pump from zheilwane, good price and good service with explanation in details of the water pump.

might be drop by your shop for more stuffs, zheilwane, can i get more discount?

thanks bro, hope u like this new water pump compared to ur previous pump

I was looking for a solution to a stable water pressure all around the house and stumbled upon the Grundfos water pump. Since I'm mowving to a new house (bought subsale of a 10 year old house) and changing all the pipes in the house, hence I might try this Grundfos pump as I read somewhere that the pipes might not be able to take the increased pressure.

Where I'm staying the mains pressure is good but the tank pressure not so. Have already done the mains bypass with non return valve, it gave good pressure all around initially but after a while it didn't have the same effect.

Hence I decided to try the Grundfos pump and hopefully will see the expected results soon. House undergoing reno atm.

Zhellwane - It was nice to meet you and thank you for the explanation on lots of things, Grundfos pump included. The mrs went gaga over the selection available. Will be dropping back to get some more stuff soon as the reno progresses.

Thanks bro. It is true that, installing a water pump is the best choice as modifying the piping will not give you the performance as good as a water pump. If u r using main water, imagine u are taking a shower, someone turns on the tap at the kitchen, your water pressure will drop a lot and the water will suddenly become hot. Even your neighbors turn on their taps, it will also affect your water pressure. If you are using a pump, you will not have this problem.

Many of my customers wasted Rm 300-400 on modifying their pipes but end up getting a water pump. However, there are many pumps in the market and GRUNDFOS is among the best, powerful, durable and silent.

i have been using the same grundfos for the last 16 years, and its still good albeit the noise.

noise is the vibration noise of your pump. To reduce the noise, you can add an anti-vibration pad.

can this be use in condominiums/apartments?