Aquamite / Supastream / Hydrotuf / Hydrostorm / Hydrostorm Plus / Hydrostar / Aquaspeed Pump Mechanical Seal

Essential Replacement Seal for Multiple Waterco Pump Models

As a retailer of pool and spa parts, I stock this versatile mechanical seal that fits an extensive range of popular pump models. This replacement seal is compatible with Aquamite, Supastream, Hydrotuf, Hydrostorm, Hydrostorm Plus, Hydrostar, and Aquaspeed pumps, making it an essential spare part for maintaining your pool or spa circulation system.

What is a Mechanical Seal?

A mechanical seal is a critical component that prevents water from leaking where the rotating pump shaft passes through the pump housing. The seal sits between the pump’s wet end (where water circulates) and the motor, creating a watertight barrier that allows the shaft to spin freely while keeping water contained within the pump body.

Without a properly functioning mechanical seal, water would leak from the pump, potentially damaging the motor and causing system failure. It’s one of the most important wear components in any pool or spa pump.

How Mechanical Seals Work

Mechanical seals consist of two precision-ground faces that create a seal through contact. One face remains stationary and presses into the pump body, while the other rotates with the shaft. The stationary component typically features a ceramic face, while the rotating portion uses carbon graphite material. A spring mechanism keeps these faces pressed together, maintaining the seal even as the shaft rotates at high speed.

The carbon graphite material provides natural lubrication, allowing the faces to operate with minimal friction. The seal relies on the pumped water itself for cooling and additional lubrication. This self-lubricating design means the seal can operate reliably for extended periods under normal conditions.

Signs Your Mechanical Seal Needs Replacement

You’ll know it’s time to replace your mechanical seal when you notice water leaking from the area between the pump body and motor housing. This leak typically appears as dripping or pooling water beneath the pump. Other signs include unusual noises from the pump, reduced performance, or visible water tracks along the pump body.

If you catch a failing seal early, replacement prevents water from reaching the motor bearings, which can cause corrosion and motor failure. Many technicians recommend inspecting and potentially replacing the motor bearings when changing a mechanical seal if water has been leaking, as moisture may have already penetrated the motor housing.

Installation Considerations

When installing a new mechanical seal, proper handling is essential. The seal faces should be kept clean and free from oils or contaminants. If you accidentally touch the ceramic or carbon faces during installation, clean them with isopropyl alcohol and a lint-free cloth before assembly.

The seal components must be installed in the correct orientation, with the ceramic seat pressed fully into the pump housing and the carbon seal assembly positioned behind the impeller. Ensuring proper alignment and complete seating prevents premature failure and maintains the watertight seal.

Compatible Pump Models

This mechanical seal fits multiple Waterco pump ranges, including:

• Aquamite – Compact pumps for smaller pools and water features
• Supastream – Mid-range circulation pumps
• Hydrotuf – Heavy-duty pool pumps (various capacities)
• Hydrostorm – High-performance pumps for larger installations
• Hydrostorm Plus – Enhanced efficiency models
• Hydrostar – Professional-grade pumps
• Aquaspeed – Speed-variable pump models

This cross-compatibility makes it a valuable part to keep in stock, as it serves as a replacement for numerous pump configurations.

Product Specifications

Specification	Details
Product Type	Pump Mechanical Seal
Compatibility	Aquamite, Supastream, Hydrotuf, Hydrostorm, Hydrostorm Plus, Hydrostar, Aquaspeed pumps
Seal Type	Carbon/Ceramic mechanical seal assembly
Shaft Size	3/4 inch (standard pool pump size)
Material	Ceramic stationary face, carbon graphite rotating face, stainless steel spring
Application	Pool and spa circulation pumps
Weight	0.05 kg
Dimensions (L × W × H)	0.1 m × 0.15 m × 0.15 m
Volume	0.002 cubic meters
SKU	6497240300
Category	Pool & Spa Spares

Why Use Genuine Replacement Seals

Using the correct mechanical seal for your pump ensures proper fit, correct materials, and reliable performance. The ceramic and carbon materials must be precisely manufactured to create the smooth, flat surfaces necessary for an effective seal. Generic or incorrectly sized seals may not seat properly, leading to immediate leaks or premature failure.

The stainless steel spring assembly provides consistent pressure to maintain face contact throughout the seal’s service life. Quality materials resist corrosion from chlorinated water, salt, bromine, and other pool chemicals, extending seal life and protecting your investment.

Keep a spare mechanical seal on hand so you’re prepared when replacement becomes necessary. Having the correct part available minimizes downtime and gets your pool system back in operation quickly.