Astral Pool Single Point Mixing Cell & Drum Connection Kit (520157)

Genuine Astral Pool Single Point Mixing Cell & Drum Connection Kit — part no. 520157. A complete connection and mixing kit for Astral Pool Rolachem and EQ series acid dosing chlorinator systems. Provides the single-point injection assembly that mixes acid into the pool water flow, along with all the hardware needed to connect the acid drum to the dosing system.

Kit Contents

• Mixing housing
• Unions and O-rings
• Acid hose
• One-way (check) valve
• Drum lid air breather

Compatibility

• Astral Pool Rolachem chlorinator/acid dosing units
• Astral Pool EQ series chlorinators

Product Details

• Brand: Astral Pool
• Part number: 520157
• SKU: 520157
• Barcode: 9343609017446
• Genuine Astral Pool spare part

Frequently Asked Questions

What does the single point mixing cell do?

The single point mixing cell is the injection point where the acid dosing pump delivers hydrochloric (muriatic) acid into the pool’s return water flow. The mixing housing creates turbulence to dilute and mix the acid with the pool water before it enters the pool, preventing concentrated acid from contacting pool surfaces or equipment. The one-way check valve prevents pool water from back-flowing into the acid dosing line and drum.

When should I replace the mixing cell and drum connection kit?

Replace this kit if you notice acid leaks at the injection point, the one-way valve is no longer holding (allowing back-flow), the unions or O-rings are cracked or deteriorated, or the acid hose is brittle, cracked, or discoloured. Regular inspection of the acid dosing line is recommended as part of routine chlorinator maintenance — acid can degrade plastic and rubber components over time.

Is this kit compatible with all Rolachem models?

This kit (520157) is compatible with Astral Pool Rolachem and EQ series acid dosing chlorinator units. If you are unsure whether this kit suits your specific Rolachem model, check your chlorinator’s documentation or contact us with your model number and we can confirm compatibility before you order.