Need a reliable chlorine feeder to keep your pool water balanced with minimal fuss? This guide highlights five proven feeders that work for many pool types and sizes. Each product section explains who benefits most, why it was chosen, and a key limitation to watch for. Use the buying guide to compare features like capacity, installation, and output control, so you pick the right feeder for your pool setup.
| Product | Capacity | Best For | Why It Stands Out |
|---|---|---|---|
| Hayward CL200EF Inline Chlorine Feeder | Up to 9 lb | In-ground pools seeking low-maintenance dosing | High capacity and durable construction |
| Merkia Pool Chlorine Floater (7.5″ Large) | Holds up to 4 tablets | Small to medium outdoor pools and hot tubs | Adjustable release; simple floating design |
| HYDROTOOLS By SWIMLINE 87502 | 9.0 Lbs | Universal installs, above or in-ground | 360° dial, easy to adjust output |
| E-cowlboy R171096 Pool Chlorinator | Up to 11 large or 98 small tablets | Large residential pools, replacement | Compatible replacement with multiple lines |
| Poolzilla Automatic Chlorinator | Up to 9 lbs | In-ground pools requiring robust dosing | Premium design with dial control |
Hayward CL200EF In-Line Chlorine Feeder
The Hayward CL200EF provides automatic, offline pool chlorination for in-ground pools. It offers consistent chlorine distribution with minimal manual adjustment, and a high-capacity design that holds up to 9 pounds of tablets. Durable, corrosion-resistant housing suits long-term outdoor use. Best for: In-ground pools that want reliable, low-maintenance disinfection. Better for: larger residential systems needing fewer refill intervals. Choose this if you want a trusted brand with a straightforward inline setup. Caution: Installation requires compatibility with your pool plumbing and circuitry; confirm line size before purchasing.
Merkia Pool Chlorine Floater (7.5″ Large)
This large floating dispenser is designed to reach every pool corner with a simple, durable ABS body. It has an adjustable release ring to balance chlorine delivery and can hold up to four 3″ tablets or sticks at once. Best for: Small-to-medium outdoor pools and hot tubs needing flexible dosing. Better for: users who want a simple, floating solution without complex installation. Caution: Tablets are not included, so add 3″ tablets or sticks separately.
HYDROTOOLS By SWIMLINE 87502 In-Line Chlorine Feeder
This in-line feeder provides a universal fit and a 360° adjustment dial to customize output. It’s designed for both above-ground and in-ground pools, offering straightforward installation and automatic chlorine distribution. Best for: Pools needing a low-effort, consistent chlorine feed. Better for: homeowners who prefer a fixed inline solution rather than floating devices. Limitation: Installation alignment with existing plumbing is required for optimal performance.
E-cowlboy R171096 In-Line Chlorinator
Designed as a flexible replacement for Pentair R171096 and Rainbow 320 chlorinators, this 320 feeder supports a wide capacity range and a broad gallonage spectrum. It accommodates up to 11 large or 98 small tablets, suitable for pools from about 6,500 to 70,000 gallons with bottom or top feed configurations. Best for: Larger or variable-size residential pools needing scalable dosing. Better for: users seeking compatibility with common replacement models. Caution: Verify compatibility with your return lines and pump setup before installation.
Poolzilla Automatic Chlorinator
Poolzilla offers a robust inline feeder with a dial-controlled output and corrosion-proof construction. It accommodates up to 9 pounds of tablets and fits both 3″ and 1″ stabilized tablets. Best for: In-ground pools needing durable, long-term dosing control. Better for: users who want a premium-feel, adjustable feeder. Limitation: As with many inline feeders, installation alignment and plumbing compatibility are essential for effective operation.
Buying Guide: Key Considerations When Choosing a Chlorine Feeder
- Pool type and size: In-ground vs above-ground and total gallons determine whether you need inline, offline, or floating feeders and what capacity is appropriate.
- Tablets vs liquid: Most feeders use solid 3″ or 1″ tablets; ensure your preferred tablet size is supported and readily available.
- Output control: Look for a dial or adjustable ring that lets you fine-tune chlorine delivery to avoid over- or under-chlorination.
- Installation complexity: Inline feeders require plumbing work; floating feeders are easier but may require more frequent tablet replacements.
- Durability and materials: Corrosion-resistant housings and durable plastics extend life in chemical-filled environments.
- Maintenance: Consider how easy it is to load tablets, seal lids, and clean the unit to prevent jams or leaks.
Frequently Asked Questions
- What size pool should use an inline chlorine feeder? — Inline feeders are ideal for larger pools with steady chlorine demand and existing plumbing ready for integration.
- Are floating chlorine feeders safer for beginners? — Floating devices are simpler but require regular tablet replenishment and monitoring of chemical balance.
- Can I mix chlorine types in one system? — Typically, use a single feeder to avoid dosing imbalances; mixing tablet types may cause uneven chlorine release.
- How often should I refill tablets? — It depends on pool usage, temperature, and feeder capacity; check the device’s indicator or manual for guidance.
- Is professional installation necessary for inline feeders? — Some installations are DIY-friendly, but ensure compatibility with your plumbing and electrical setup; consult a pro if unsure.
- Do these feeders also handle bromine? — Many units support bromine tablets as an alternative to chlorine, but verify tablet compatibility for each model.