Water Heater Singapore
Reason for the Callout
The customer reported discoloured hot water. Suspected internal rust and tank degradation.
Condo
Hot Water Rusty: Rheem 65SVP10S Replacement at The Bay Shore
A homeowner at The Bayshore condo reported a hot water rusty issue. Upon inspection, the old Rheem water heater showed signs of corrosion and lacked PUB-required safety components. Homeone recommended a full heater replacement with updated components and compliance.
Before: Rheem 65SVP10S
After: Rheem EH-40M
Date Of Replacement: 22 Apr 2025
Project Location: Bayshore Road
Before Replacement:
The old Rheem 65SVP10S heater had visible corrosion, internal rust contamination, and lacked essential PUB-mandated components, including double-check valves and stop valve or stop cock. The homeowner reported discoloured and rusty hot water, posing risks of backflow and contamination.
After Replacement:
We installed a new Rheem EH-40M water heater with increased capacity and corrosion resistance. All new components were fitted to meet PUB standards, including electrical safety features and proper drainage for long-term reliability and safety.
Inspection Findings 
- Corrosion was observed around fittings and the tank surface
- No check valve or earth bonding detected
- Using the wrong 1.5mm² electrical cable, which is not suitable for the water heater.
New Components Replacement
- Double Check Valve – Prevents backflow contamination
- Drain Pipe – Safely channels overflow water
- 2.5mm² Cable – Provides essential electrical bonding and supplies a new power supply cable for the heater.
- Earth Bonding – Ensures electrical safety
- Gate Valve – Allows shut-off for maintenance
Replacement work scope:
- Dismantling of old Rheem 65SVP10S heater
- Supply and install new Rheem EH-40M unit
- Install new safety components: double check valve, gate valve, bonding cable, drainpipe
- Carried out earth bonding with 2.5mm cable
- Secure electrical and plumbing connections
- Final testing for the temperature of the hot water pipe. Pressure testing for both hot and cold water.
- PUB compliance submission upon completion
Our PUB Licensed Plumber has endorsed that the work is done in accordance with the conditions stated below:
- All water service installations must be in accordance with the Public Utilities (Water Supply) Regulations, Singapore Standards 636 for Water Services, and all other relevant statutory requirements.
- The proposed works shall not adversely affect the existing water supply reticulation system.
- The proposed water storage heater is installed in accordance with the specifications and requirements of the manufacturer.
- The installation of double-check valves is safe and effective in preventing backflow and the back-siphonage of water from the storage water heater through the heater inlet pipe, and will be safe for use.
Conclusion:
Homeone successfully replaced the corroded Rheem 65SVP10S at Hume Park Condo with a new EH-40M model. All works were completed by our trained technicians and supervised by a PUB-licensed plumber. The installation meets PUB regulations and ensures long-term safety, hygiene, and performance.