Water tank is installed inside the roof. Replacing it requires taking off big part of the rooftop and reconstruct i guess? Not sure the correct way. Anyone been this situation b4? Looking for a valid solution and for those who had experience how much does it cost for 4 u to replace?

Your roof rosak already? Have pictures or not? Have you panjat from inside and see the condition of the roof?

Use fiber restoration kit to seal the leaking points . There is no need to replace the water tank.

Confirmed tangki cracked. Water keep dripping.

may i know what's that? Should I be looking for "Fiberglass FRP Repair Kit"? patch is durable?

Sorry for the confusion, it is fiberglass restoration kit / patch. Last time I bought this product to seal the leaking points.




Before sealing:-



After sealing:-



This post has been edited by nihility: Dec 15 2022, 06:47 AM

Try contacting your local plumber try to do bypass.

'Water tank' bocor can be either .....

1. Water tank body itself
2. The connecting pipes
3. The faulty float valve.

Anyone inspected it ? Any photos ?

Want to consider bypass it?
Buy stainless steel tank put ground floor+ pump

The chemicals stuff will slightly contamn the water, wont it?

inspected. cracked at the bottom body of the tank

noted for last resort

My advise is to replace or place a new tank on the grd floor together with a pump.

Unless you know diy to save money, no plumber can guarantee it wont leak again after patching it.

Everything has a lifespan. Today patch the leak, tomorrow it leaks another place, unless you dont mind diy patching everytime it leaks.

The resin , after it dried off, it won”t have further reaction. The purpose of the resin is to melt the fiberglass, the fiberglass is actually a type of glass.

one of my houses kena b4 tank leak.

nasib baik it is a semi-d.

they do it from the side land there within 1 day.

This post has been edited by mezanny: Dec 15 2022, 08:38 AM

change the tank la
if you install pump like some who suggested, be careful bekos the pressure might cause new internal leaks if your existing pipes kenot handle the pressure, lagi problem!

Replacing the tank, this should be the cost involve :-

Rental of crane - smallest in the market 25 Tons = RM 600 for 1/2 day, if they don't rent 1/2 day, then need to pay for full day around RM 1200~1500.
Removal of roof tiles & placing back roof tiles = RM 600
New PE water tank (330 igal) = RM 800
Installation of joints, valves, etc = RM 400.

Total worst case = 1500 + 600 + 800+ 400 = RM 3300.

That should be the range you are looking at.

If seal back, own DIY - fiberglass restoration kit = RM 25~30. 1/2 day labour sendiri buat = RM 0. Total cost = RM 25~30.

Hence it will be RM 3300 vs RM 30.

This post has been edited by nihility: Dec 15 2022, 08:58 AM

Ya, this is the best idea. If have to change the tank.

The roof/ceiling dismantle and repair cost can be high. The cost can be use to cover the plumbing modify.

I use plastic sheet and some fiber with epoxy glue and finish it with silicon. It is a polytank.

It last for over 12 yrs till now.

Need a crane? not necessary laa ...Asked your local 'ng kam tim' kedai to recommend Indo plumber, they can do it ... opened part of roof tiles, replaced and closed back roof tiles.

Did this before, no big issue laaa ....

guess your house is close to 20 years?

my kampung house which was built back in 1988, the tangki also bocor last year. creating waterfall down the staircase... and living room all flooded.

took the whole day to clean everything and to replace the tangki.

This post has been edited by kons: Dec 15 2022, 09:26 AM

i also replace a new water tank 1600 L capacity on second floor open air rooftop in last year.
I bought s/steel water tank and the contractor just use the durable cable to pull it up from front roof slowly and carefully w/o crane.
ATKC Water Tank - cost RM 1550
Labour charge - RM 600

Hi, would like to seek everyone's opinion. my water tank is leaking as well but it's kept enclosed under metal roof sheet. Is it possible to "open up" the metal roof sheet to remove and replace the tank?

Cant use my imagination to brain the looks & difficulty of the works

I think better u ask the awning ppl to have a look at site.

talking about waterfalls... I kana last 5 years before pkp. we went for holiday, when get back see waterfalls down from the second floor through the staircase.. knn. house not even 10 years yet.

when I checked , got two leaks on the main pipe joint before the tank

you see, they really cut corner on those things that u cant see. in this case, cheap pvc piping

This post has been edited by JimbeamofNRT: Jul 15 2024, 12:55 PM

now i have 800 gallon tank on my roof...

it will really be waterfall if any pipe breaks...

May not be possible without damaging the roofing, and even then the roof truss might be in the way too.
Talk to your plumber, might be a way to open up ceiling instead.

approx. 3000 liters on your head

thing is with the water piping, it wont give you any warning, just burst . just like that

>Turn off main incoming water pipe
>Fully drain tank by opening all your indoor pipe
>Access area through service manhole from 2nd floor ceiling / outside by removing some rooftiles
>Enter tank, patch with epoxy (like that fibreglass posted) or waterproof sealing tape
>Leave them to set as required
>Re-open incoming water and monitor

Maybe ask the contractors to some additional stuffs like fitting / float valve replacement as needed if they think you'd need. Prepare water in smaller containers for use in the mean time.

last time one of my house a Semi D, yes have to remove part of roof.

but if ur house is linked, I dunno lah.

how much? I forgot lah..so many years ago

This post has been edited by hoonanoo: Jul 16 2024, 04:35 PM

do look for permanent solution. Patching would only be short term.

If you're to tukar the tank, compare the cost effectiveness 1st whether replace the tank via access through rooftile vs indoor ceiling.

Some rooftiles got layers upon layers of insulation, best not to touch those if you don't want to experience roof leaks when rain due to shitty contractor.

if you go via indoor ceiling, redo the access panel kasi bigger to accommodate the minimum tank size. Ugly because of thin lining, yes but for cost saving/practicality, you won't regret in the long run.

Patching done right can last a very long time and way cheaper than replacing the tank itself.

* Not all leaks can be properly patch.

Are you in Klang Valley? Can share your contractor's number? My parents' need replacing.

yes no choice it is the only way

If got space at backyard , why not install stainless steel tank with water pump?

You just contact this hardware vendor at below estore.
They may give you a few suggestion for installation. My contractor charged me for RM500 to dismantled and pull up the tank to the roof top and then install piping 4 years ago.

https://www.ewarehouse.my/?gad_source=1&gcl...5hoCr7UQAvD_BwE

Yes, the usual black poly tank can be bought online and have it delivered.

Installation:
- The poly tank is not heavy; can be pushed and pulled up to the roof manually.
- The roof tiles can be lifted up and put aside.
- 1 or 2 of the supporting planks (for the tiles) would be removed or cut for the tank to go into the roof.
- Pipes disconnected from old tank and old tank removed.
- Put in new tank. Reconnect water inlet and outlet pipes.
- Check for water leakage.
- Replace supporting planks (and maybe replace using new planks); put back roof tiles onto their supporting planks.
- Done. Half day job.

you need to find good repairman who can give warranty for this work bro

can also inspect your roof beams first if dont wanna climb so high.
since tank bocor, ceiling gone already.

if small poly tank, can just take out ceiling and fit between roof truss.
if cannot fit between roof truss from below, it wont fit between roof truss from above anyway

Are you talking from experience?

The roof truss are the main beams. These you don't touch. The planks I mentioned above are those 1x2 inches planks (that are for supporting the roof tiles).

When the tank leaks or overflow, the ceiling may be water stained. The ceiling are thick boards, attached to the roof truss by means of nails and ceiling beams. They can be repainted.

Ceiling beams are those thin pieces of long wood attached to the ceiling/roof truss with nails. Have to remove them first if changing the ceiling boards. This is a more major job, as the thin ceiling beams would be damaged.

And surprise, surprise... There would be a thick layer of dust on the ceiling boards. You would regret removing them.

Anyway, the job is for contractors, not diy. The steps listed are just for reference and as guide what the job entails so that you have a rough idea how much to pay the contractor.

Need to find the source first… whole roof kena?

basically, roof trusses like this, you cannot detach.
papan ceiling however are not load bearing or rather they only bear the load of the ceiling.

Ceiling boards and associated boards can be repainted, but if you wanna stick a new tank inside, might as well do everything one shot.
take out the boards to put tank in, then replace ceiling board

just changed my water tank earlier this year, forget about patching, if it starts to leak means time is up, unless you are very free to patch up every single time, easiest way will be replacement with 316 stainless steel tank, not the 304 and 316 more suitable for indoor.

cut open ceiling just enough for the new tank, get plumber to cut off old tank piece by piece, install new tank, re-do plaster ceiling. that's about it, too troublesome to replace it back with FRP tanks

my plumber just climb onto the roof with the new tank, dunno how he did it

How much change?

Same as mine.

plaster jer la..

Later water kena cut due to external pipe bocor or local water dept maintenance, how ?

The tank will act as storage, just like how the under roof tank does.

ask your plumber , varies on sizes for the tank

Nowdays no more using fiber tanks, mostly use Polyethylene tanks, ask Bangla or Indon guy to patch with aditional pvc sheet and pvc glue, better patch in and out just to be sure it stick well.

bypass it, install new tank on ground floor+pump
or take the risk and no tank at all.

Last time why kemahiran hidup class did not teach this