Sta-Rite HMSE Deep Well Jet Pump Guide: Specs, Sizing, and Installation

What the Sta-Rite HMSE Is

The Sta-Rite HMSE is a 1 HP horizontal multi-stage jet pump designed for residential deep well systems, farms, irrigation, and pressure boosting applications.

Part of the Sta-Rite HMS Series under Pentair, the HMSE features:

• 1 HP, 115/230V dual voltage motor
• 2-stage horizontal multi-stage design
• Automatic pressure regulator
• Polycarbonate impellers
• Carbon-ceramic mechanical seal
• Cast iron pump body

The HMSE supports:

• Self-priming centrifugal mode (up to 25 ft)
• 2-inch or 3-inch single-pipe deep well jet systems
• 4-inch double-pipe deep well jet systems

Where the HMSE Fits in the HMS Series

The Sta-Rite HMS Series includes multiple horizontal multi-stage configurations ranging from 3/4 HP through 1-1/2 HP.

The HMSE is the 1 HP version and is one of the most common residential deep well configurations due to its balance of flow, pressure, and efficiency.

For tighter mechanical rooms, Sta-Rite also offers the vertical MSE and MSG multi-stage systems.

Full HMSE Specifications

The HMSE remains one of the best value deep well jet pumps for homeowners needing reliable pressure without moving into premium Grundfos pricing.

Choosing the Correct Jet Package

Self-Priming Centrifugal Mode

Best for shallow wells up to 25 feet.

Single-Pipe Deep Well Jet

Designed for wells between 25–60 feet where casing limitations exist.

Double-Pipe Deep Well Jet

Best overall configuration for 4-inch casings and wells up to 110 feet.

If your static water level is deeper than 25 feet and your casing is 4 inches or larger, the double-pipe configuration is typically the best choice.

Installation Tips

Mounting

Install the HMSE on a stable base with vibration isolation when possible.

Priming

Fully prime both the suction line and pump body before startup. Dry-running damages the carbon-ceramic seal quickly.

Pressure Switch Settings

The HMSE ships preset at 30/50 PSI. Match pressure tank pre-charge correctly:

• 30/50 switch = 28 PSI tank pre-charge
• 40/60 switch = 38 PSI tank pre-charge

Incorrect settings cause short-cycling and premature motor wear.

Common Problems

Pump Runs But No Water

Usually caused by lost prime or suction-side air leaks.

Short Cycling

Typically caused by a waterlogged pressure tank or incorrect pressure switch setup.

Low Pressure

Often caused by worn impellers or partial clogs.

Final Thoughts

The Sta-Rite HMSE remains one of the strongest value deep well jet pumps for homeowners who need:

• Reliable residential pressure
• Flexible deep well configurations
• Easy servicing
• Lower cost than premium-tier systems

For most homes with 25–110 foot water levels, the HMSE is an excellent fit.