Sinking & Floating Chlorine Dispenser for Pool - Uses Less Chlorine

In this review the Sunken Treasure Sinking & Floating Chlorine Dispenser is evaluated for pool owners who are tired of replacing flimsy floaters and want to cut chemical waste. The bottom line: this dispenser is for homeowners who want a low-maintenance way to keep chlorine working inside the pool instead of evaporating into the air. Our review finds it reduces chlorine use by placing tablets deep underwater, lasts multiple seasons, and returns to the surface only when a tablet is fully dissolved, making it a practical replacement for standard floating chlorinators.

Key Features

• Sinks to the pool bottom: Keeps the chlorine tablet deep underwater so tablets dissolve more slowly and deliver a steadier dose to pool water.
• Uses less chlorine: By preventing chlorine from evaporating at the surface, it claims to cut chemical consumption roughly in half compared with floating dispensers.
• Floats back up for refill: After a tablet is fully dissolved the unit rises to the surface, making it easy to retrieve and reload without draining water.
• Durable construction: Built to outlast cheap floaters, the dispenser is designed to remain functional across seasons and avoid repeated replacements.
• Reduces chlorine odor: With less chlorine released into the air, users report a noticeable reduction in the strong pool chlorine smell.
• Made in the USA: Manufacturer support and satisfaction are emphasized, with contact encouraged if problems arise.

Who It's For

This product is best for residential pool owners who want a simple, mechanical way to improve chlorine efficiency and reduce ongoing chemical cost. It is particularly suited to larger pools where maintaining steady chlorine levels matters and for owners who dislike the strong chlorine smell around floating dispensers.

It is not recommended for dark plaster pools or vinyl lined pools because concentrated chlorine near surfaces can cause premature bleaching, so those pool owners should look for alternative dosing methods or consult a pool professional before use.

Pros & Cons

Pros

• Substantial chlorine savings reported when used as intended, reducing chemical costs over a season.
• Improves pool water clarity and reduces chlorine odor by keeping the tablet submerged.
• Durable design lasts longer than cheap floating tablet dispensers, often paying for itself in one season.
• Easy to use: customers note simple loading and straightforward operation.

Cons

• Some users report inconsistent floating behavior, with a few units surfacing sooner than expected; results can vary by pool conditions.
• Not recommended for dark plaster or vinyl lined pools due to potential bleaching from concentrated chlorine contact.

Specifications

Product name	The Original Sinking & Floating Chlorine Dispenser
Primary function	Sinks chlorine tablet to bottom then floats back up for refill
Chlorine use	Designed to use roughly half the chlorine of floating dispensers
Recommended pools	Residential pools; not for dark plaster or vinyl lined pools
Longevity	Durable design to last multiple seasons
Country of origin	Made in the USA

Our Verdict

The Sunken Treasure dispenser is a practical upgrade for pool owners who want to cut chlorine waste and avoid the constant replacement of cheap floaters. It delivers steady dosing by staying submerged, lowers chlorine odor, and usually pays for itself in seasonal chemical savings, though those with dark plaster or vinyl liners should avoid it.

Frequently Asked Questions

Will it really reduce chlorine use?
Yes, by keeping tablets underwater the unit limits evaporation at the surface and users report using about half the chlorine compared with floating dispensers.

Does it float back up for refill?
Yes, the dispenser is designed to rise to the surface when the tablet is fully dissolved so it can be retrieved and reloaded easily.

Can I use it in all pool finishes?
No, it is not recommended for dark plaster pools or vinyl lined pools because concentrated chlorine contact can cause premature bleaching.