Description
Pentair Superflo pump housing R357297
The Pentair Superflo pump housing R357297 is the original wet end body for Pentair Superflo circulation pumps. It forms the main hydraulic casing around the impeller and strainer section, restoring a solid, leak free structure when the existing housing is cracked, worn or damaged by frost or chemical attack.
Main features of the Pentair Superflo pump housing
- Original Pentair pump housing for Superflo pool circulation pumps.
- Includes the main volute body with integrated strainer connection and union ports.
- Designed for direct fit with the original lid, locking ring, diffuser and motor assembly.
- Manufactured from robust, corrosion resistant material for pool environments.
Function and role in the filtration system
The pump housing is the core of the Superflo wet end. It channels water from the skimmer line through the strainer basket and diffuser, then out to the filter under pressure. A sound housing is essential to keep the system sealed, maintain correct hydraulics and protect the motor from leaks.
- Holds the strainer basket, diffuser and impeller in the correct position.
- Provides the threaded connection for the transparent lid and locking ring on the suction side.
- Ensures watertight inlet and outlet ports towards the filtration pipework.
Compatibility and typical applications
The Pentair Superflo pump housing R357297 is designed specifically for Superflo models that share this wet end design. It uses the same footprint, port layout and fixing points as the original body, so existing components can be transferred across during refurbishment.
- Compatible with Pentair Superflo circulation pumps that specify reference R357297 as pump housing.
- Suitable as a replacement when the original body is cracked, deformed or leaking.
- Ideal for rebuilding a pump using the existing motor, diffuser, lid and internal parts when these are still in good condition.
When to replace the Pentair Superflo pump housing
The housing is exposed to pressure, vibration, temperature changes and pool chemicals. Over time, or after incorrect winterising, it can suffer visible damage that cannot be repaired reliably with sealants or temporary fixes.
- Cracks or splits in the housing, often around unions, drain plugs or moulded seams.
- Deformation or warping that prevents correct sealing of unions or lid.
- Persistent leaks from the body even after replacing gaskets and unions.
- Frost damage where trapped water has expanded and broken the plastic.
Installation guidelines
Replacing the Pentair Superflo pump housing R357297 involves transferring parts from the old wet end onto the new body. The work should always be done with the system depressurised and the power supply isolated.
- Switch off and isolate the electrical supply to the pump.
- Close valves on the suction and return lines and drain the pump housing.
- Disconnect unions or pipe fittings and remove the pump from its base if necessary.
- Separate the wet end from the motor, remove the diffuser and impeller and take off seals, drain plugs and fittings.
- Install these components on the new R357297 housing, renewing seals and O-rings where required.
- Reconnect the housing to the motor, reinstall the pump on its base and reconnect the pipework without forcing the unions.
After reassembly, prime the pump, restore power and check the housing carefully during the first operating minutes to confirm that all joints remain dry and that the filtration flow is stable.
Good practice for long term reliability
Correct operating and winterising routines help the new pump housing deliver many seasons of service.
- Protect the pump from freezing by draining or storing it correctly during winter in cold climates.
- Keep water chemistry within recommended values to limit chemical stress on plastic parts.
- Support pipework so the housing and unions are not subjected to excessive mechanical load.
- Inspect the body periodically for early signs of stress or seepage and address issues promptly.
With a correctly installed Pentair Superflo pump housing R357297 and sound seals and unions, the wet end of the pump is once again mechanically secure and watertight, supporting reliable filtration performance.
