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Client Notice
Magtech General Construction & Trading Pte Ltd replaced a domestic FRP/GRP water tank at 6 Chestnut Close, Singapore, at a landed home.

The tank that prompted the call was an old one, and what failed on it was the top cover. On a domestic water tank the cover is the part that keeps the stored water closed off from everything outside it, so a cover that has given way is not a cosmetic problem. It is the component that matters most for keeping the water clean.
We put two options to the owner. Because sectional panel tanks are built from individual panels, a failed section can often be replaced on its own and the rest of the tank left in place – that is one of the genuine advantages of the sectional design, and it is the cheaper route. The alternative was to replace the tank outright. Given how old the tank already was, the owner chose the full replacement, and we proceeded on that basis.
The new tank is an FRP/GRP sectional panel tank measuring 1.5m (L) x 1m (W) x 1.5m (H), built in the same position on the existing concrete plinth, which was reused as we would on any like-for-like replacement. It is fitted with an external access ladder, a water level indicator, an inlet with an isolating valve, and a drain valve, so the tank can be checked and isolated easily from outside.
The tank was supplied and delivered within one month of order, and the replacement itself was carried out in a single day. The water supply was off from 9am to 5pm – a window agreed with the owner in advance, so the household could plan around it rather than be caught out by it.
We inspected the existing tank and the failed top cover, and looked at the condition of the surrounding panels to establish whether the failure was isolated or a sign of a tank near the end of its life.
We presented both routes rather than only the larger one. A panel replacement would have addressed the failed section and left the rest of the tank in service. A full replacement would reset the whole tank. We set out what each involved and left the decision with the owner; given the age of the tank, the owner chose to replace it in full.
The water supply had to come off for the works, so the window was agreed with the owner beforehand – 9am to 5pm on the day. Agreeing that in advance is what turns a disruption into something a household can plan around.
The old tank was drained, dismantled and removed, and the new tank built in its place on the existing concrete plinth. Reusing the plinth on a like-for-like replacement avoids concrete work altogether, and it is a large part of why this kind of job fits inside one day.
The piping works were completed in the same visit rather than booked as a second trip, and the tank was filled, checked and put back into service within the agreed window.
It is paramount that a water tank is tightly sealed. The cover is what stands between the stored water and everything outside it – insects, pests, dust and debris. On a domestic tank that water goes on to the taps in the house, so once the cover has given way the barrier protecting it is gone. That is why a failed cover is treated as urgent rather than cosmetic.
That said, not every failure needs a new tank. Sectional panel tanks are built from individual panels, so a damaged section can often be replaced on its own – which is exactly why that was the first option we put forward here. Whether it is the right answer depends on the condition of everything around the failed part. On a tank already well into its service life, replacing one component tends to move the problem along rather than solve it, and an owner is better served by hearing that plainly than by being handed only the cheaper quote.
With over 35 years of experience and more than 4,000 water tanks installed across Asia, Magtech continues to deliver FRP water tank replacement for homes and buildings across Singapore.
in sectional water tanks
across Singapore and Asia



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