Davey - ProMatic pH Injector Tee with 2 Holes - M8043-2

Davey – ProMatic pH Injector Tee with 2 Holes (M8043-2)

This is a genuine Davey spare part for the pH dosing system integrated into the ProMatic MPS, ESR, and ESC salt water pool chlorinator range. The injector tee is the plumbing fitting installed in the return pipework that allows the acid dosing pump to introduce pH-correction chemical directly into the pool water flow. With two holes, it accommodates both the chemical injection point and a secondary access port — for example, for a probe or a second injection line.

Compatibility

This part (Davey part number M8043-2) is designed for use with the Davey ProMatic MPS, ESR, and ESC series salt water chlorinators equipped with the integrated or add-on pH control module. Always verify your unit’s part number against the Davey spare parts list before ordering, as pH-equipped and non-pH models may differ.

Why genuine matters

The pH dosing circuit handles pool-grade acid under peristaltic pump pressure. A genuine Davey injector tee is manufactured from chemical-resistant materials rated for continuous contact with pool water and acid dosing fluid, ensuring a leak-free seal and reliable injection performance season after season. Non-genuine substitutes may not seal correctly, risking chemical leaks or inaccurate dosing.

Installation

The injector tee is typically replaced when the existing fitting shows signs of cracking, chemical degradation, or leakage at the injection point. It is installed in-line on the return pipe using plumbing thread tape — no sealing compounds or pipe dope should be used. Installation should be carried out by a qualified pool technician familiar with chemical dosing pipework.