Choosing the right chlorine injection pump for well water involves balancing chemical compatibility, flow rate, pressure, and reliability. This guide highlights five well-regarded options and components to help you optimize dosage accuracy and system longevity. Each entry includes key specs and practical considerations for American well-water setups.
| Product | Brand | Key Feature |
|---|---|---|
| Stenner Peristaltic Pump 85MHP17 | Stenner Pump Company | 0.8–17 GPD, adjustable head, 100 psi |
| Precision Controls Diaphragm Metering Pump | Generic | 31.6 GPD, 150 psi, 115V |
| Stenner Peristaltic Pump 45MJH2A1S | Stenner Pump Company | 0.5–10 GPD, 100 psi, adjustable head |
| Stenner UCDBINJ Injection Check Valve 1/4″ | Stenner Pump Company | 1/4″ injection check valve |
| Stenner UCINJ38 Injection Check Valve 3/8″ | Stenner Pump Company | 3/8″ injection check valve |
Stenner Peristaltic Pump 85MHP17 — Adjustable Head
The Stenner 85MHP17 is a peristaltic diaphragm pump designed for chlorine injection with flexible flow. It features a variable high-pressure rating up to 100 psi and a 0.8 to 17 GPD range, making it suitable for a range of well-water disinfection dosages. The pump uses Santoprene tubing and ships with 20 feet of 1/4″ tubing, supporting extended runs. Its adjustable head allows precise dosing control, which is essential for safe and effective chlorination. Consider compatibility with your water chemistry and contact time when sizing the unit.
Precision Controls Diaphragm Metering Pump — 31.6 GPD
The Precision Controls metering pump delivers a high capacity dosing option with a maximum of 31.6 GPD and up to 150 psi. It includes a 115V power cord and plug and is noted as compatible with 230V hardwired setups, which can be advantageous for larger well-water systems requiring robust chlorine dosing. This model is suitable for users seeking a straightforward, high-flow chlorination solution, particularly in applications where rapid mixing and uniform dosing are needed. Verify compatibility with your dosing manifold and chemical compatibility with chlorinated solutions.
Stenner Peristaltic Pump 45MJH2A1S — Adjustable Head
This Stenner model offers a 0.5 to 10 GPD dosing range with a 100 psi maximum pressure. The adjustable head design supports precise flow control for chlorine injection in residential or small commercial well systems. The unit uses a 1/4″ white Santoprene tubing, with a 20-foot length included, allowing flexibility in pump placement. Its compact footprint and reliable peristaltic mechanism make it a common choice for consistent chemical dosing where space is limited.
Stenner UCDBINJ Injection Check Valve 1/4″
The 1/4″ injection check valve from Stenner is built to ensure unidirectional flow and prevent backflow in chlorine injection lines. Manufactured to high standards, this valve helps maintain consistent chemical dosing and system integrity, reducing the risk of siphoning or cross-contamination. When integrating with a Stenner pump, verify compatible fittings and hose arrangements to maintain proper seal and pressure ratings.
Stenner UCINJ38 Injection Check Valve 3/8″
The UCINJ38 is a 3/8″ injection check valve designed for higher-flow chlorine dosing. It provides reliable backflow prevention and is compatible with a range of Stenner injection configurations. Ensure that the valve dimensions align with your pump and injection line fittings, and confirm chemical compatibility with chlorine solutions to maintain long-term performance in well-water treatment systems.
Stenner 85MHP17 Replacement Pump
The 85MHP17 replacement pump pairs with head assemblies for consistent chlorine dosing, maintaining the 0.8 to 17 GPD output at up to 100 psi. This model ensures continuity of performance in existing installations, especially where head assemblies require periodic replacement due to wear. Confirm compatibility with your existing Stenner head and tubing selections to avoid mismatches in flow and pressure ratings.
Cutetool J20-12 Gasket — Pentair Sta-Rite Compatibility
The Cutetool J20-12 gasket is a compatible seal for Pentair Sta-Rite MS series injection pumps and related J/JB components. Made from chlorine-resistant rubber, it provides a reliable seal under high-pressure conditions and contributes to leak prevention in well-water chlorination systems. When selecting gaskets, match the gasket size to your pump model and confirm chemical compatibility with chlorine solutions to preserve pump performance over time.
Buying Guide: Key Purchase Considerations
- Flow rate and pressure: Determine the GPD and maximum psi your well system requires to ensure accurate dosing and reliable operation.
- Tubing and material compatibility: Santoprene tubing is common for chlorine, but verify chemical resistance and temperature tolerance for your water chemistry.
- Power requirements: Check voltage needs (115V vs 230V) and whether your setup supports hardwired or plug-in configurations.
- Valves and fittings: Injection check valves prevent backflow and siphoning; match sizes (1/4″ vs 3/8″) to your pump and line diameter.
- Maintenance and replacement parts: Stock common wear items like diaphragms, tubing, and gaskets to minimize downtime.
- System integration: Ensure compatibility with existing well-pump controls, dosing manifolds, and safety features such as bleed and air release valves.
- Electrical and environmental considerations: Protect equipment from moisture and ensure safe enclosure for outdoor or damp locations.
- Cost of ownership: Compare long-term durability, tubing life, and spare-part availability beyond initial purchase price.
For optimal results, match pump capabilities to your specific well-water characteristics, including chlorine demand, contact time, and total dynamic head. Always follow manufacturer guidelines for installation, calibration, and safety when handling chlorine-based solutions in drinking-water applications.