Hi guys,

I'm having some kind of weird problem that I cannot figure out the source.....

My water tank is overflowing like waterfall dei...not sure if it's related, but it happened right after the maintenance by SYABAS in gombak area (batu caves).

Went to the bumbung to check, panjat here panjat there, found the tangki..opened the tangki, checked the pelampung, ok i think it's time to change the pelampung..damn hard to unscrew it..

So the process of changing the pelampung went well eventually. I thought I have solved it..but after a few hours, started overflowing again.....

Went back to the bumbung, suddenly tengok-tengok, the tangki full (above normal level).. Turned off main pipe, opened some taps to reduce the water level in the tangki..then checked the pelampung back again.. here are some pictures,


1) Checking the newly bought and installed pelampung set... Tangki is being filled..




2) Tried hand-stopping the pelampung, good, no water dripping...




3) Water automatically stopped, meaning no dripping. confirmed pelampung ok..




4) Now the water level still rising, until the pelampung also tenggelam....started overflowing again...




Now i really pening what could've caused the overflowing problem....I suspect it's the non-return valve.. But, well.. i don't know where it is, don't know what it looks like..and too many pipe connection...lol..

Can someone help me pleaseeee....tension gila!



------------------------- UPDATE ---------------------------------

Went back again to the roof, to take some pictures of the pipe connection just in case some one can help pinpoint the problem.

THIS IS THE FIRST TIME I WENT TO THE ROOF, SO VERY THE MESSY...NEVER KNEW SO MANY SAMPAH SARAP HERE LEFT BY THE OLD CONTRACTORS..ISH ISH ISH


1) Is the red circled the NON RETURN VALVE? The black pipe is the main pipe from outside into the tank.





2) Is this too?





If the non-return valve may be the cause, how much would it cost? can D.I.Y ke???? easy?? if can, I might do it myself... hujung bulan no gaji yet...





The flow of the piping:

1)

2)

3)

4)

5)






-----------------------------------------------------------------UPDATE 1ST NOVEMBER 2015-----------------------------------------------------------------


So I finally went to the hardware shop and bought two Check Valve (3/4") size..

Started to operation roof!! While going to the hardware, opened all taps to empty the water from the tank.. Then started opening the first suspected Check Valve.. It was soooo ketat to open had to use extra force.. I thought that was hard, but removing the previous pipe tape (the white tape) was even harder!!!!!

Here's the pic of the old check valve.. I THINK THE SPRING IS NOT WORKING ANYMORE. PUSHED EITHER SIDE, NOTHING MOVED. SO YEAH I GUESS THE SPRING IS NOT FUNCTIONING ANYMORE


Front





Back




And here's the pic of the new Check Valve.. The spring works wonderful..







Changed two suspected Check Valve to avoid double work.. I accidentally left one of the old check valved on the roof, malas nak ambil lagi.. later ambil lah..haha

Cost?? RM30 for one Check Valve (made in italy woi!!), and RM3 for the white tape..total with GST = RM67.30 (IINM)..

This is the first time my operation roof.. Hopefully with the lack of skills, I am able to solve my problem. Checked at the joints, alhamdulillah no leaking or evidence of water outside of the valve.. I hope the connection is tight and secure..

Tank is still filling though. I'll update if it still overflows....hopefully not!!!!! Touchwood!!

This post has been edited by one1002: Nov 1 2015, 02:29 PM

change what to new set? If the arm set, it is new set. Just bought and installed yesterday... if the bola, still useable, tried rendam in water, no holes no bubbles, so still can use.. =D

Ya, if you see in the picture, the arm is already bent twice.. I bent it before installing.. However, even I bend it further down, it still will overflow, double triple check the pelampung, no water leak from the main pipe to the tangki, ceiling is not wet, no water dripping from the pelampung.. anyway, i tried your suggestion, same thing haha..


Hi, thanks for the reply, unfortunately, there are no water leaks. I went around the tangki, bend downwards to check for any water residue on the floor (ceiling), nope..nothing..no leaks confirmed!

For the connection, I have updated the photos in my first post.

This post has been edited by one1002: Oct 25 2015, 12:20 PM

Lol, i no idea what you talking about hahaha..still learning... Check valve = Non-Return Valve = Red Circled in the picture??? Same thing? How do I switch off the bypass?

Sorry Lucifah for asking these, trying to learn few things before I call plumber...hahaha..

Nope, used back the bola.. Bola still useable..sudah rendam dalam air, bounced back like gila high..so still can use..check for holes or leaks, none found! =D

This is what I suspect too...so I think better to change the whole set of valve right?

Hi, this is the reason I created this thread. Because I myself cannot figure out the water source into the tank (after the bola pelampung has stopped the water inlet). If you notice on my pictures in the first post, the pelampung set works wonderfully well. No dripping.. So I think, there must be some back-flow water coming back into the tank..hence it's overflowing.

Unfortunately, I have very very very limited knowledge in plumbing works..still learning..googling..etc.. =D

Bola pelampung is still usable, so I did not change it..just the arm.. In the first picture, the brass (tembaga) thing is new..made in England tau..haha

OK Lucifah, I have prepared the piping flow for you..haha

1)


2)


3)


4)


5) The overall layout

I think so too...but, in the third pic also have the non-return valve. The problem is I don't understand why outlet no. 3 going back to the main pipe into the tank..any idea?

Yup, the non-return valve? yes black pipe is the inlet (from SYABAS PIPE METER outside into tank).. You asked how can inlet and outlet be connected, this one I cannot help you haha..

This is not a new connection. More than 6-7 years already since the last contractor went up to the roof, so I can confirmed that the piping was OK, no problem. Only happened on Tuesday, right after SYABAS maintenance.. I suspect the high water pressure from the main intake (Syabas) caused the non-return valve to go kaput..

But the layout of piping makes me .

I don't know why, especially for the outlet no. 3, is going back to the mainpipe into the tank. This one really . LOL.


Call me idiot, but I don't know about bypass... care to explain a bit?? haha...

Yea I have reduced the water pressure, closed the tap by half.. See if it makes any difference. But long term, gotta change the return valve... When you say expensive, how expensive?


Hey lucifah, thx man for the tip..

What's the diff between swing and spring? what's the difference in cost pulak??

By the way, in your previous posts, you said , why you said clever? Can explain abit? hehe sorry bro..i'm intrigued to know...

ahhh I see...i understand now...thanx!!


Ya at first I thought the same too...I closed the cover, and placed my ear directly on the side of the tank.. I hear no water dripping..so this one can rule out already..

Anyway, I have to wait until weekend only can do DIY..no time la working..

Will try to update how it goes!

Nah..I just changed the pelampung valve set and the Check valve.. hahaha


Yeah, that's what I tried when replacing the check valve.. the first check valve (master bedroom) cannot even pushed in. It's stuck.. the second check valve can push in, but just a bit. Not like the new one.. So i just changed both.

Yes sirrrrr!!! I finally figured out the two bypass systems (2 check valves).. It is like a direct flow from Syabas to the Master bedroom and other bedroom.. hehe.. So in outlet 3, it is not running back to main pipe..it is actually from the mainpipe, bypassing the tank and going straight to the other bathroom.


I takut oh to do that later got water inside tank, all overflow inside my house hahahahaa...


yeah, was pain in the A** to open and close main supply at 5.30am before mandi manda..lol..same at night..

Yeah this actually happened after SYABAS Maintenance last week (20th Oct 2015)..after that, straight away overflow...I think the water pressure busted the check valve.. Lagipun, i think it's due time juga to change..

Correct sir.. sorry for the sketch..It is wrongly indicated..actually it is located at the straight pipe from tank going to the master bathroom..not between those two..haha

No sir, already checked the float ball...like i mentioned in a few posts before, I rendam inside water, no bubbles, and when i released it, the ball just pushed back out of the water very high woiii..haha

Hopefully solved lah...still waiting for the tank to fill up..will monitor again..

This post has been edited by one1002: Nov 1 2015, 02:39 PM

UPDATED ON THE 1ST POST, PAGE 1

yes.. problem solved till now.. haha

Haha.. So far after changing those 2 valves, no more overflow as of now.. I considered it as fixed..