Salt Chlorine Generator Parts

Collection: Salt Chlorine Generator Parts

178 products

Salt Chlorine Generator Parts & Replacement Cells

Maintain and repair your saltwater pool system with salt chlorine generator parts and replacement cells from Hayward, Pentair, CMP, Harwil, Polaris, and Pool Tool. PST Pool Supplies stocks the consumable and service components for the most widely installed residential salt systems — replacement electrolytic cells, flow switches, bypass pipes, temperature sensors, and sealing hardware — starting from $10.90.

The primary consumable in any salt chlorine generator is the electrolytic cell — the component that converts dissolved salt into chlorine through electrolysis. Cells have a finite service life (typically 3–7 years depending on pool volume, usage, and water chemistry maintenance) and must be replaced when chlorine output drops despite correct salt levels. Hayward Turbo Cell replacements: the GLX-CELL-5-W (Turbo Cell for 20,000 gallon pools) and GLX-CELL-5 (Turbo Cell for AquaTrol above-ground systems) are the standard Hayward replacement cells. The CMP PowerClean Salt Ultra 540 Replacement Cell and SGS PowerClean cell housing serve CMP's PowerClean salt system. Flow switches are the second most commonly replaced component — they protect the cell by shutting off chlorine generation when water flow is insufficient (preventing the cell from running dry and burning out). Hayward Goldline GLX-FLO-RP flow switch and the Pentair IntelliChlor flow switch (520736) are direct OEM replacements. The Polaris Autoclear and Autoclear Plus flow switches serve Polaris salt systems. Winterization components include the dummy salt cell winter bypass pipe and Hayward Goldline Aquarite bypass pipe — these replace the cell in the plumbing during pool closure, protecting the actual cell from freeze damage while maintaining water flow for blowout. The Pentair IntelliChlor O-ring (O-301, union) and SGS PowerClean cell housing O-ring are cell housing seals. The Pentair IntelliChlor 10A mini blade fuse protects the power center. The Hayward AquaLogic/ProLogic temperature sensor provides water temperature data used by the salt system controller to compensate chlorine output (salt cells generate less chlorine in cold water — temperature compensation is essential in cooler climates). The Pool Tool zinc anode (2" inline) protects pool equipment from galvanic corrosion in saltwater systems. For complete salt chlorine generators, see our salt chlorine generators collection.

Salt cell maintenance is the most impactful factor in cell longevity. The primary cause of premature cell failure is calcium scale buildup on the cell plates — scale reduces conductivity and forces the cell to work harder, shortening plate life. Inspect your cell every 3 months by removing it and looking at the plates with a flashlight: light scale (white dusty coating) can be dissolved by soaking in a dilute muriatic acid solution (4:1 water to acid) for 15–20 minutes. Heavy scale requires more aggressive cleaning. Maintaining pool calcium hardness at 200–400 ppm (not higher) and running the cell's self-cleaning reverse polarity cycle regularly are the most effective preventive measures.

Shop salt chlorine generator parts and replacement cells to keep your saltwater pool system running efficiently.

Frequently Asked Questions

How long does a salt chlorine generator cell last and when should I replace it?
A quality salt cell (Hayward Turbo Cell, Pentair IntelliChlor, CMP PowerClean) typically lasts 3–7 years under normal residential use, with lifespan heavily influenced by water chemistry maintenance. The cell's titanium plates with their ruthenium oxide coating degrade gradually with use — the coating wears from every electrolysis cycle. Signs it's time to replace the cell: (1) The generator's control board shows a "Check Cell" or low output warning despite correct salt levels (2,700–3,400 ppm for most Hayward systems). (2) Chlorine demand testing shows the system is not generating adequate free chlorine even at maximum output setting. (3) The cell plates show visible erosion, pitting, or flaking of the coating when inspected after cleaning. (4) The system requires the output dial set at 100% to maintain even minimal free chlorine levels. Replacing the cell is the correct repair — the control board and housing typically outlast multiple cell replacements. Always clean the cell before concluding it needs replacement — heavy scale can reduce output dramatically and cleaning may restore performance.
Why does my salt cell flow switch keep tripping and how do I fix it?
A salt cell flow switch is a safety device that detects water movement through the cell — if flow stops or drops below the minimum threshold, it shuts off chlorine generation to prevent the cell from running dry and burning out. Common causes of flow switch tripping: (1) Dirty filter — high filter pressure reduces system flow rate below the flow switch's threshold; backwash or clean the filter. (2) Clogged pump basket — a full basket restricts suction flow; empty the basket. (3) Air in the system — air bubbles passing the flow switch can cause intermittent tripping; check for suction-side air leaks (pump lid O-ring, union connections). (4) Damaged flow switch — the paddle or magnetic reed switch inside the flow switch can fail mechanically; test by bypassing the switch temporarily (for diagnosis only) and observing if the system runs normally. (5) Low water level — if pool water drops below the skimmer, the pump draws air and loses flow; refill the pool. If the flow switch trips constantly even with clean filter and full pump basket, replace the switch with an OEM replacement (Hayward GLX-FLO-RP, Pentair 520736) — flow switches are relatively inexpensive and commonly wear out before the cell.
What is a salt cell bypass pipe and do I need one for winterizing?
A salt cell bypass pipe (also called a dummy cell or winterization bypass) is a piece of PVC pipe cut to the same length as your salt cell that installs in the cell's plumbing position during pool winterization. Its purpose: when you close the pool for winter, you remove the actual salt cell (which contains precision titanium plates and electronics) and install the bypass pipe in its place. This allows you to fully blow out the plumbing without forcing compressed air through the salt cell's delicate internal structure, and it stores the actual cell indoors where it's protected from freeze damage. Salt cells should never be left in the plumbing over winter in freeze-prone climates — residual water inside the cell housing can freeze, expand, and crack the cell housing or damage the plates. The bypass pipe is inexpensive insurance. The PST Pool Brands dummy salt cell bypass pipe and Hayward Goldline Aquarite bypass pipe are sized for their respective systems. Store the actual salt cell in a cool, dry indoor location during winter, and inspect it for scale buildup before reinstalling in spring.
What is a zinc anode and why is it important for saltwater pools?
A zinc anode is a sacrificial metal fitting installed in the pool's plumbing that protects other metal components from galvanic corrosion — a significant concern in saltwater pools. Saltwater is an excellent electrolyte, meaning it conducts electricity between dissimilar metals submerged in it (such as stainless steel handrails, copper heat exchanger components, aluminum light fixtures, and the zinc in pool equipment). When dissimilar metals are electrically connected through saltwater, the more reactive metal (lower on the galvanic series) corrodes preferentially — this is galvanic corrosion. A zinc anode placed in the plumbing provides a highly reactive metal that corrodes first, protecting the more valuable stainless, copper, and aluminum components. The Pool Tool 2" inline zinc anode installs directly in the pool plumbing — the zinc gradually corrodes and must be replaced when it has deteriorated to less than 50% of its original size (typically annually to every 2 years depending on salt level and current flow). In saltwater pools, also check for zinc sacrificial anodes on the pool light fixture and any stainless steel components — bonding and anode protection are the primary defenses against accelerated galvanic corrosion in high-salinity environments.