Waterway

Waterway 315-8300B OEM Booster Pump Volute

SKU: 315-8300B UPC: 806105587565
Regular price $102.95 Sale price$140.00you save $37.05
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Quick Facts
Waterway part 315-8300B
Booster pump volute
Replacement wet-end housing
Directs water to the discharge
Match the pump parts diagram
Key Benefits +
  • Replaces a damaged volute on a compatible Waterway booster pump
  • Part-number identification helps with repair planning
  • Channels water from the impeller into the discharge path
  • Allows targeted housing replacement when the rest of the pump is serviceable
How to Use +
1 Confirm the pump model and required volute number before ordering. Have a qualified pool service professional replace the housing using the applicable Waterway service instructions. Power must be isolated and system pressure relieved before opening the pump. Inspect the surrounding seals and mating components during the repair, then check operation and sealing after reassembly.
Specifications +

Brand: Waterway

Manufacturer part number: 315-8300B

Component: Booster pump volute housing

Application: Compatible Waterway booster pump wet ends

Function: Channels water from the impeller toward the discharge

Selection: Match the pump diagram, housing number and connection configuration

UPC: 806105587565

Buy with Confidence from Benchmark Pool Supply +

Choose Waterway 315-8300B when your booster pump parts diagram calls for this volute. Matching the housing number and plumbing connections helps you order the correct wet-end component for the repair.

Buy with Confidence from Benchmark Pool Supply

  • Trusted pool professionals
  • 100% Genuine Manufacturer Parts Guaranteed
  • Fast Shipping
30-Day Hassle-Free Returns
Expert Product Support
Full Product Description +

Key Benefits + Booster Pump Replacement Fit

  • Genuine Waterway replacement volute for compatible Waterway booster pump assemblies
  • Part number 315-8300B helps customers match the correct pump housing component
  • Directs water from the impeller into the discharge port to support proper pressure and flow
  • Helps restore booster pump performance when the original volute is cracked, warped, leaking, or damaged
  • Important wet-end component for pressure-side pool cleaner booster pump systems
  • Helps prevent leaks around the pump housing when matched and installed correctly
  • Supports proper alignment with the impeller, seal plate, motor assembly, and plumbing connections
  • Useful replacement when repairing a compatible Waterway booster pump instead of replacing the full pump

Quick Product Summary

The Waterway 315-8300B OEM Booster Pump Volute is a genuine Waterway replacement housing used on compatible booster pump assemblies. The volute surrounds the impeller and directs water into the discharge port, helping create the pressure and flow needed for booster pump operation. Use this part when the original volute is cracked, leaking, stripped at the fittings, freeze-damaged, or no longer sealing properly. Always confirm your pump model, existing volute number, and plumbing connection style before ordering.

Best For

  • Waterway booster pump volute replacement
  • Compatible Waterway booster pump repairs
  • Pressure-side pool cleaner booster pump systems
  • Replacing cracked, leaking, stripped, or freeze-damaged volute housings
  • Pool owners and service professionals matching Waterway part number 315-8300B
  • Restoring proper water flow and pump wet-end sealing

Why This Matters

  • A cracked volute can leak under pressure and cause equipment pad water damage
  • A damaged housing can reduce pressure to a pressure-side pool cleaner
  • Stripped inlet or outlet threads can prevent a reliable plumbing connection
  • A warped or cracked volute may prevent the pump from sealing correctly
  • Replacing the correct housing helps maintain proper impeller alignment
  • Inspecting seals and O-rings during replacement can help prevent repeat leaks

Common Signs You Need This / Use This When

  • Use this part when the booster pump housing has visible cracks or fractures
  • Use this replacement when water leaks from the volute or housing seam
  • Common signs may include reduced pressure, water dripping near the pump body, or damaged threaded ports
  • Replace the volute when freeze damage, overtightened fittings, or age has compromised the housing
  • Use this part when your Waterway booster pump parts diagram calls for 315-8300B or a verified equivalent replacement number

Product Specifications

Specification Details
Brand Waterway
Product Name OEM Booster Pump Volute
Part Number 315-8300B
Product Type Booster pump volute housing
Equipment Type Pool booster pump
Application Pressure-side pool cleaner booster pump systems
Use Replacement wet-end volute housing
Function Directs water from the impeller into the discharge port
OEM / Genuine Status Genuine Waterway replacement part
Category Booster Pumps in Sprinkler, Booster & Irrigation System Pumps

Compatibility / Fitment Notes

The Waterway 315-8300B volute is intended for compatible Waterway booster pump assemblies. Because booster pump wet-end parts can vary by pump model and plumbing configuration, confirm your existing pump model, original volute number, inlet and discharge connection size, seal plate fitment, impeller clearance, and parts diagram before ordering.

Do not assume this volute fits every booster pump, every pressure-side cleaner pump, or every Waterway pump model. Match the part number and pump assembly carefully before installation.

Installation / Use Notes

Turn off power at the breaker before servicing any pool pump or booster pump. Drain the pump housing and relieve pressure before removing plumbing or opening the wet end.

During replacement, inspect the mechanical seal, O-rings, seal plate, impeller, fittings, and threaded ports. A leaking volute may be caused by a cracked housing, but worn seals or damaged O-rings can also contribute to leaks. Reassemble according to the manufacturer’s instructions and avoid overtightening threaded fittings, which can crack plastic housings.

Buy with Confidence

Benchmark Pool Supply helps pool owners and service professionals match pump parts by brand, part number, and equipment fitment. Booster pump volutes can look similar, but connection size, wet-end alignment, and pump model compatibility matter. We focus on clear product identification so customers can match the Waterway 315-8300B to the correct booster pump repair and avoid unnecessary wrong-part orders.

Waterway 315-8300B OEM Booster Pump Volute
Regular price $102.95 Sale price$140.00

Frequently Asked Questions

What does the volute do in a booster pump?

What does the volute do in a booster pump?

The volute directs water from the impeller into the discharge port, creating pressure and proper flow.
How do I know if my volute is cracked?

How do I know if my volute is cracked?

Visible cracks can indicate a damaged housing, but a leak at the seam can also come from a seal or mating component. Have the leak source checked before selecting the replacement.
Can I repair a cracked volute?

Can I repair a cracked volute?

A cracked pressurized pump housing should be assessed for replacement by a qualified pool service professional. Do not rely on a temporary patch to restore the housing.
Is this part OEM?

Is this part OEM?

Yes, the 315-8300B is a genuine Waterway replacement part.
Should I replace other components at the same time?

Should I replace other components at the same time?

It’s recommended to inspect the mechanical seal and O-rings during replacement to prevent future leaks.