24 Jun 2025

Castle Green

Water Heater Corrosion Replacement: Rheem 65SVP10S to Joven JSH35 at Castle Green on 23 Jun 2025

A homeowner at Castle Green Condominium reached out to Homeone after noticing water dripping down their bathroom wall and discolouration near the ceiling panel. Upon inspection, our technician discovered a clear case of "water heater corrosion"—the existing Rheem 65SVP10S unit had rusted through the tank wall and was actively leaking. From the before photo, extensive rust is visible across the tank base and lower casing, with signs of long-term corrosion. The damage extended beyond the heater itself—metal pipe fittings had oxidised, and brown streaks were running down from the heater casing to the false ceiling, posing a high risk of electrical damage and internal water seepage.

  • Project location

    Castle Green

  • Property type

    Condominium

Water Heater Corrosion - Rheem Condo. 00

Before

Replacement of a Rheem 65SVP10S water heater to resolve heater problems end of service life.

After

The Joven JSH35 has been newly installed to the existing water heater system, with all connecting pipework made of stainless steel. The installation includes a new stop valve, double check valve, drain pipe, electric bonding, and 2.5mm² wire, and a submission has been filed to PUB to ensure safety and compliance with PUB regulations. Additionally, Homeone offers a 1-year warranty on this installation, complementing the manufacturer's warranty, ensuring peace of mind and reliable service.

Water Heater Corrosion Replacement: Rheem 65SVP10S to Joven JSH35

📍Castle Green

Homeowners at Castle Green Condo engaged Homeone after discovering a serious water heater corrosion issue that posed both safety and property damage risks. The existing storage water heater had developed severe tank rust, accompanied by active water leakage and a blocked drainage path, causing water to accumulate and threaten further damage to the bathroom ceiling.

🏢 CONDO 💧 STORAGE WATER HEATER ✅ PUB COMPLIANT

Project Overview

A homeowner at Castle Green Condo engaged Homeone to replace their existing Rheem 65SVP10S storage water , which was showing visible signs of wear and non-compliance. 

Why this replacement is needed?

Following an on-site assessment, our team identified that the corroded heater was no longer safe for continued use and required immediate replacement. To resolve the issue properly, we replaced the faulty Rheem storage heater with a Joven JSH35 model, selected for its suitable capacity and reliability for the household’s usage needs.

Before

Old storage water heater before replacement at Castle Green

Water Heater Corrosion - Rheem Condo. 01
 Rheem 65SVP10S at end of service life.
After

New storage water heater installed

Rheem Water Heater Leaking Condo. 02
Joven JSH 35

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⚠️ Need help with your Rheem storage water heater?

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The outcome of our work

Site Findings

  • Water Heater Rusty tank body with active leaks

  • Brown rust stains are visible near the inlet and tank seams

  • No drain pipe – water discharged unsafely into the open

  • No double check valve or approved backflow device (violation of SS636)

  • No electrical bonding, violating CP5:1998 safety standards

Replacement Work Scope ⚙️

Dismantling & Assessment

  • Isolated power and water supply

  • Removed rusted Rheem 65SVP10S unit

  • Cleared debris and corroded pipework

Installation of Joven JSH35

  • Mounted the new 35L heater horizontally

  • Installed stainless steel hot/cold piping and fittings

  • Connected exposed drainpipe for safe water discharge

  • Fitted check valve, stopcock, and applied electrical bonding

Testing & Commissioning

  • Leak testing and pressure validation
  • Bonding continuity check
  • Verified safe operation of temperature relief valve and new drainage line
PUB Certificate Castle Green Condo Rheem Water Heater

Submission for PUB

Our job was completed together with the required PUB submission. This ensures all plumbing works meet PUB’s standards and comply with Public Utilities (Water Supply) Regulations — a key part of doing the job safely and correctly.

Conclusion:

This water heater corrosion case at Castle Green Condo was a serious safety concern, with active leakage, blocked drainage, and tank rust threatening further ceiling damage. Homeone successfully resolved the issue by replacing the corroded Rheem heater with a Joven JSH35 model and installing a fully PUB-compliant exposed drainpipe for long-term reliability.

All works were performed under the supervision of a PUB-licensed plumber and EMA-certified electrician, ensuring maximum safety and peace of mind for the homeowner.

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