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Client Notice
Magtech General Construction & Trading Pte Ltd completed a condominium water tank replacement at The Riverwalk, a residential condominium in Singapore. Two hot-dip galvanised (HDG) pressed steel sectional water tanks serving the estate’s fire protection system were replaced: a two-compartment sprinkler tank on the fifth storey and a two-compartment wet riser tank on the roof.
The fifth storey sprinkler tank measures (3.66+6.1)m x 8.54m x 2.44m (H) and the roof wet riser tank measures (2.44+4.88)m x 4.88m x 2.44m (H). Each is divided by a partition into two compartments, so one side can be isolated for inspection or cleaning while the other stays in service for the residents.
The existing tanks were dismantled and disposed of, the existing I-beam supports were repainted, and the new tanks were assembled on the same supports without a new skid base. Panels were specified at 5 mm for the base and the first three tiers, with 1.5 mm hydraulically pressed roof covers. Each tank is fitted with an external HDG ladder with safety cage, an internal ladder and a water level indicator.
Condominium projects are more complex than they look on a drawing, and more so on established estates. Tank rooms and rooftops were laid out decades ago with little spare space, roof access is often through narrow stairs, hatches and plant areas, and residents are living below the work the whole time. Every panel, ladder section and fitting has to be shifted up by hand along a route agreed with the managing agent, and the old panels and steelwork come down the same way. That is work for a specialised team that has done it before, not a general plumbing crew.
The sprinkler tank sits on the fifth storey and the wet riser tank on the roof, so each tank had its own access route and sequence. Sectional panels suit this: the tank arrives as flat panels and is bolted together in place, not lifted in as one piece.
The existing I-beams were sound, so they were repainted rather than replaced and the new tanks were assembled directly on them. On many older condominiums the I-beams are corroded and have to be replaced as well, which is the hardest shifting job of all; here the structural work was kept to a minimum.
Each old tank was dismantled and removed, the new tank built on the cleaned supports, and the finished tank filled and checked for leaks before the fire protection system was put back into service.
For an MCST or managing agent, a fire tank replacement is one of the larger maintenance items a condominium will face, and the sprinkler and wet riser systems depend on it. A corroded pressed steel tank is a compliance risk long before it fails. The replacement itself is rarely the hard part; getting the materials to a fifth storey tank room or a rooftop on an older estate, through tight spaces and awkward roof access, is where the experience shows.
HDG pressed steel remains the standard choice for this duty. The galvanised panels, bolted joints and sealant system are proven, and the sectional format means a condominium fire tank can be replaced panel by panel without a crane or a road closure.
With over 35 years of experience and more than 4,000 water tanks installed across Asia, Magtech continues to deliver water tank replacement for condominiums, apartments and strata-titled estates across Singapore.
in sectional water tanks
across Singapore and Asia
Send us the required effective capacity, available space, intended water use and project drawings. Our team can review the information and advise on the next step.