Anybody got any experience? How much does it cost? And is it good?


Please share. THanks.

Nice PE water tank cost around RM 1500 for 200 gallon or you can get cheap poly tank for about RM200 but not very nice.

You also need a diverter and pump (optional).

I am also looking around for rain harvesting and total cost is about RM2000. Dunno is it really worth it or not.

What is the usage of the water you all harvested.

I think that should be the first question. What do you want to harvest the water for, only then we know the cost and its value.

I think before that you will need a rain gutter system to harvest the rain. Which mean the amount of harvest will be depends on the amount of rain fall on your roof. Rain gutter system cost is depend on the length of the rain gutter and the type of rain gutter. G.I rain gutter RM12/ft & Stainless Steel RM25/ft, UPVC pipe 3" RM4/ft,4" RM5/ft. If you want a water pump system I think will cost around RM2000 - 3000 or more, else you only need to harvest the rain to your water tank and take it out manually with buckets for use..?

This post has been edited by AndersonNeo1989: Sep 12 2011, 11:42 PM

Harvested rain water for WC and cleaning and stuff like that.

Maybe just the divider?

May be it is fine for the usage you want.
But what is divider..?

My friend did a DIY for his rain water harvesting solution, but it was all done at his backyard. Basically he asked the contractor to divert the water from the roof into 2 large 100 gallon tank at the back. The tank he converted it by adding a pipe between the two tanks so that it shares the water and it becomes 200 gallons in total and an external pipe. Mainly uses the water to either water the plants behind and clean the back porch area. He has a large space at the back of the house, almost 20 feet.

every once in a while, you need to clean up the tank.. because all dirts will accumulate in the tank.. and if there's any leaves or tree branch that land on your roof, it will go into the tank too.. So, it needs maintenance..

Harvest for WC, below something need to look into.

01) Filtering the rain water
02) Where you want to store the water?
03) Redirect pipe for WC, in case your harvest tank is empty
04) Pump, for pumping water to first floor WC.

Its possible if our locals have the adequate expertise. But we are too theory like we cant do a real thing. Architecture body have not really emphasize on it..

Its like they dont rectify the design need of sustainability; prefer hype it like the world now.

I believe individual residential unit doing water harvesting is not viable.
Construction site and factory lot might look more feasible to do it.

Last time I saw was the factory use the water recycle for cooling the factory temperature by pumping the water over the rooftop over and over again. lol.

Maybe specify the budget and see if is doable. Can cost up to many thousand for proper system. I know new building in Singapore collect A/C condensate water for plant and w/c and many non drinking purpose.

http://www.bca.gov.sg/GreenMark/others/ggwater.pdf

Page 4, and 6

Yeah, factory need a lot of water for different activities.
Construction also can use the water for cleaning and construction.

i think in kl, when u want to built bungalow the authority will request the owner to built a rain harvesting system...

The government is planning to impose this condition on new development.

Read here

Most developer selling high end properties are using this as their selling point.

Aiseh, this means we have to pay more.

I thought you just need to do this
Get a tank,
Install pipes from to roof to the tank.
Add some Denggi/Aedes mosquito poison to the tank water once in a while.
Wash the tank regularly.
Get Mangkuk type baldi to get at the water.
Ta daaa..... rainwater harvested.
Cheap and Simple

That's kampung style...

there are some local companies that specializes in rainwater harvesting

http://www.ddtechniche.com/index.htm

http://www.myhomepalm.com/rain-harvesting-...-rain-head.html

the problem with it , is that initial start up cost is expensive..

500gallon tank + piping + sorter/filter + pump = BOMB...

unless the government can give some like of incentive then its worth while...

unless your a green freak

Not to mention some major piping work too.

depends if you want to wash car.. water plants then not much piping only small piping from the gutter to the filter/sorter

this tank

http://www.ddtechniche.com/images/pdf%20fo...tank%20v5.0.pdf

seems reasonably sized in terms of dimensions and water storage capacity, just sked the price will cause a heart attack..

cause a poly tank for abt 200 gal/750lit cost about 450-500 bux, if its priced in the same range then it would be good


This post has been edited by JinXXX: Sep 14 2011, 11:34 PM

On the subject of rainwater harvesting can anyone suggest a filter system
that will separate the leaves twigs to prevent blockage and spillover?

One hi-end german unit costs RM1280 and that is way too high!

Any one with any alternative or experience in this system would
really prove helpful, thanks.

you can try this

product document ,  leaf_eater_rain_head.pdf ( 436.63k ) Number of downloads: 424


http://www.rainharvest.com/rain-harvesting...pout-filter.asp

about 30 USD makes it about 120 MYR

Thanks a lot for the useful info!

Now I can go to a fabricator to get my
own version done. Saved about 1K
with this simple leaf/debris filter system.

Will post pix of finished instal.
Thanks again!!!!!!

rmbr the most important is the mosquito netting, else your tank become a large mosquito farm

unless your tank is above ground and got the sun to help "boil" water for you

Sure or not that the sun can help to boil the water in the above ground storage tank
Mosquito will bread anywhere in stagnant water

Yup, concrete [1 cu/m] tank is under the sun.
Will use 2 grades of s/s netting to sort out all
debris & mossies, plus breed guppies or
add abate every month.
Thanks!

This post has been edited by ride00: Sep 21 2011, 01:27 PM

bate no need so frequent, with correct dosage once in 3 months.

OK, noted abt correct Abate dosage, TQ!

houses in those new launches in denai alam come with this feature... hope that helps the environment a lil..

denai alam is at where ? who's the developer and what they include in their rainwater collection system ?

google would be able to help

http://www.simedarbyproperty.com/property_...ef-ee53f1332602

try download this brochure you can find part of the feature list :
GREEN
• Rain water harvesting system to recycle nature's
precious water for gardening, washing cars
and flushing


I think the contractor is located here in KL/Subang area...u may check with them at the site office.

This post has been edited by numbertwo: Sep 22 2011, 02:03 PM

i am using this kampung style to harvest rainwater
recently can wash car porch everyday, hari2 hujan mar.

I would like to contribute a little to this topic. I hope the interest is still high among those who are environment conscious.

One of the most difficult thing with rain water harvesting implementation in Malaysia is the lack of industry players and lack of government support. Nonetheless, there are a few companies that do offer the product but due to the cost, many are deterred.

I have actually inquired from the 2 companies mention on this thread which are basically DD Techniche and MyHomePalm. Both are located at Subang Jaya and Puchong respectively.

For a homeowner like myself, the biggest turn off is the high price of installing a basic rain water harvesting setup. For a setup to be functional, 2 main part are required for RWH. The leaf eater and first flush diverter. Both these device unfortunately seem like a simple device and does not seems to cost a lot but are sold at a premium. The rest of the devices such as tanks are easily available on the market.

The pricing by the vendors below

DD Techniche - 3P Technik Filter Collector is both a leaf eater and first flush system. The cost is RM450
MyHomePalm - Leaf Eater Rain Head. The cost RM799. No price on first flush. But looking at the price of leaf eater, the first flush will probably be more.

After a long search, I have manage to find a RWH vendor from Australia that sells a combo product as above. The price is AUD$70 leaf eater + first flush + AUD$50 for air freight. That is total AUD$122 or around RM380.

The vendor did mention if I do a bulk purchase, like 20-30 units, he would propose sea freight which should at least reduce cost of shipping by half.

Any takers?




Attached thumbnail(s)

Is it possible to rainharvest in condo ? I plan to use it to water my plants & wash d balcony .

Firstly you need a roof and access to gutter. Else, I have never heard of anyone doing RWH for condo before.

Kampung got their own perigi (well)

This post has been edited by svage98: Nov 25 2011, 07:35 PM

Can the rainwater used to wash car?

why not? The rain water are mostly for washing and toilet use anyway

How is the bacteria and the smell?

Last I check the price, it cost abt 2k, for the tank and leaf eater... The tank is sealed, so no mosquito can enter it. Not sure abt bacteria though...

count me in.... is it easy to install? anybody else..i think this is cheap...hope we can get more people and get more discounts

Count me in also....been looking for a rain harvesting system for my new home

Anywhere with stagnant water will have bacteria, they are called microbial growth, but it is fine for day to day washing for porch, plants, car and such. Dont use for bathing or bodily washing and such, babies and young kids are sensitive to microbial contamination

i am interested to get this RWH for my new house too.
Can someone share their setup? I will only be using the harvested water for my WCs.
My plan is to install the system on top of the roof - collect water coming down from the roof into a separate tank.
From the tank, there will be pipes going to each individual bathroom's wc.
Since it is only for WC, do I really need the first flush diverter? Heck .. who cares if the water is a little dirty, it is for flushing the toilet anyway.

I will have another tank for shower etc.

I also need to know how do I top up the water in the rainwater tank when it is down to certain level - I am trying to avoid using a pump here.
Possible or not?

I think it is possible if your tank is below the level of the rain gutter outlet level so the water can flow into the tank.
But I think you still to to use some sensors for the tank level detection.

My opinion for the leaf eater is that, since the leaf eater is install after the outlet of the gutter which is middle way of the piping.
How if the leafs stuck in the gutter..? :s

having leaves stuck in the gutter is the least of my worries now. my only problem is how to top up water in the tank when there is no rain.
but then, I dont want the system to top up until the tank is full. i want it to top up until certain level only. hmmm how to do this without sensor/pump ah?

Err.. if water dirty, stain your toiler wor...

This RWH system is not cheap. Normal RWH for house cost rm5k+. I don't see it save in term of buying cost and running cost.

The system have rain water/leave separator, a tank and pump. The tank have a backup water from main pipe incase rain water running low. Just a normal ball valve were you see in most of the water tank.

Without a pump, how to flow the water to the WC? Unless your tank is above the ceiling and not higher than the gutter rain collector.

Here the example of the RWH I taken from some new house. This tank is locate at the 2nd floor. Without pump, water can't flow to the 2nd floor WC.

Stain the toilet is not a big problem. It is the bacteria will infect your toilet is dangerous.

Pour a cup clorex every week into the tank. ;-)

That will add up your cost to maintain. Where you thinking the RWH can save your water cost. But not.

wont stain the toilet ler ... use "duck" to turn the water blue! problem solved. hehehe

---

Added on July 12, 2012, 12:36 pmi think shit got more bacteria than rainwater ler. just make sure the toilet is clean.
i think it is ridiculous flushing the toilet with treated water. the whole idea of RWH is not to save money ...
i just thought i should do something to help the environment without costing me too much of course.

---

Added on July 12, 2012, 12:39 pmtank will be on the roof above 2nd floor. Yes, gutter will be higher than the tank.


This post has been edited by lionfish77: Jul 12 2012, 12:39 PM

It look clean. But it not clean. Can you clean it everyday? How much a blue capsule cost?

When the bacteria infect the bow, it even more danger for the male than the female.

If the cost is not much, I will do it for the enviroment too. But when it cost more than a thousand buy 1 and still got to pay to maintain and treat the water than,

I would rather change to water saving WC.

but i heard that JUSCO/AEON management have practised this RWH for toilet few years oredi and they save A LOT!

Of course lah. How many thousand of people aday using their toilet. The ROI back is faster.

I plan to DIY a rain water harvesting storage. But first, i need a plastic container like this in the photo. Anyone can give some pointer where to get this and how much does it cost? preferably shop near Puchong or Klang Valley area.

You can try BP opposite wet market.

The place that sure you can get is pj oldtown.

Hi Ozak,

BP=Bandar Puteri or Bukit Puchong?

Bandar puteri

My house in Denai Alam comes with RWH unit. I got rid of it and connected my my tank outlet straight to the garden pipe.
The reason:
1. The tank provided is big and ugly. It also collects rain water (on top of the tank )and became a mosquito breeding ground.Also located near the exterior wall making it easy for theives to stand on while trying to break in.
2. Scared the pump which is located on the ground floor at the back of the house will be easily stolen.
3. It only services the garden tap which i hardly use.
4.Saving water by consuming electricity (pump) does not make environmental sense.


After a long hard thought got my contractor to dispose the tank and gave the pump and switch to my dad.

This post has been edited by crow190569: Jan 4 2013, 09:53 AM

Mine no pump will be installed. I intend to do the manual and basic ones.

The Housing Ministry has actually issued guidelines to all the local authorities to implement the RWH system (SPAH) for all semi-detached houses,
detached houses and shops middle of 2012. The guideslines can be found here:

http://jkt.kpkt.gov.my/bm/fileupload/Garis-Panduan-SPAH.pdf

Most of the local authorities are still kelam kabut about it but are told to implement it anyway.

IMO, installing RWH system which involves pump which consumes electricity, require maintenance and installatiion cost does not make sense.
It defeats the purpose of 'going green', the objective being to conserve resources.

It is worthwhile only for double storey houses where you have the storage tank on the lst floor level to collect water from the roof and feed by gravity
to the wc's, garden taps, etc.

If you get acid rain in your area (industrial area especially), washing car with the acidic water would be harmful to the car body.

This post has been edited by tehtmc: Jan 5 2013, 11:34 AM

The enforcing is 2014.

But saw some new house deeloper already implement it. Those expensive house. Not sure the cheap house.

normally first 10 minutes of rain water is acidic..so need to drain it first, only then can collect it...rain water is "soft water"..

Rain water harvesting system normally come with a first flush device to drain off the first few minutes rain water.

Found this video.
Super-simple mechanism. The system only divert clean rainwater to storage tank after the "self timer" finished.

good info..i'm looking for a buttom to "like" it but this is not FB ...anyone building this system diy?

The system can be easily clone and DIY.
The only problem is to find the cone shaped PVC fitting.

Bill of materials:
● Cone shaped PVC fitting.
● PVC pipe, fitting & glue.
● Mesh filter.
● Hollow plastic ball.
● Dripper.

This post has been edited by Bubble Ring: Mar 11 2013, 10:57 AM

I still don't understand how it work. What the ball use for?

i think can get a big funnel, and cut it to fit a T joint.....

thing is to find a ball that can fit, n seal tight.....

How much roughly does it cost to install the above system?

this day, use 3d printer to design that simple stuff.

What do you mean by "that simple stuff"? Print??

I don't know, I'm not seller/installer.
The pictures captured from this video.

with understanding of 3d Printing, moulding and duplicate design getting more easier.

do google how 3d printer could help yr small design like this roof gutter filter.

Do you mean by using certain software to create the actual system out?
Kind of like tailor made the parts?

You can get the blue barrel (2nd hand) at

http://www.barrelanddrum.com/

Less than rm40 (for 2nd hand unit). 210l. Not advisable for drinking water. Should be ok for gardening etc.

May I know what means Rain Water Harvesting?

Collect rainwater from the gutters in your house inside a tank. Then use a pump to circulate water for gardening/toilet/cleaning.

Simple schematic attached:





Attached thumbnail(s)

Wow! Like this need use 2 tank right?

Yup in my housing area they provided a tank outside the house with a pump. I just gave the pump to my dad to build pressure in his house, threw away the RWH tank and joined the pipe work to my main tank in ceiling. So now my garden using tank water.

So normally use for gardening only?

Gardening, washing car/proch, in some cases toilet flush also can use

deleted.

This post has been edited by H2D: Sep 4 2013, 05:06 PM

Gardening & toilet use maybe ok but if wash car will affect paint?

While rainwater harvesting is a good idea, the cost is a big barrier. Instead, we can re-use water.

eg, the last rinse from the washing machine. The water clean enough to mop floors, flush toilets, wash cars, etc.

Have the washing machine on the first floor channel the rinse water to large container in the bathroom.
http://renovationmalaysiahq.com/water-problem-in-malaysia/

something to ponder ... american actually have law regulating rain water harvesting.

I think it is a good idea to harvest rain water, but like what everybody has mentioned, the intended usage is quite crucial.

For example, my brother in law built a koi pond in his house. His roof has no gutter and he did not realise that most of the water from his roof flows down to where his koi pond is. He built it during the dry season and when the first bout of heavy rain came, almost all the fish died within half a day. He then monitored during the next heavy rain and realised a lot of rain water from the roof ended up in the pond due to the shape of the roof. After the rain, he measured the pond water with a PH tester and the acidity was off the charts for any koi to survive.

my experience with fishpond usually fengshui got blame ... fish die to counter sha !! lolz ...

btw the USA reason for having law on water harvesting is that water are public property and by harvesting you are hogging public property. its like trying to dig petroleum at your house ...

I guess if they live within the water basin which their treatment plant water is sourced from, there is some logic to such laws.

If not mistaken, Malaysia also have now.

we have rain to HARVEST mehhhh ... if the dam cant harvest water ... you little citizen cannot sucessful in harvesting tooooo ... our government logic ... if we cant have it, you cannot have it tooo ...