Description
FROG DropH pH and Total Alkalinity Decreaser for Hot Tubs and Swim Spas - 3 lb Bottle
Simple pH and Alkalinity Control for Better Balanced Water
FROG DropH pH and Total Alkalinity Decreaser is designed to help lower high pH and total alkalinity in hot tubs and swim spas. When pH is too high, water can become harder to manage, sanitizer may not work as effectively, and scale can build up on surfaces, filters, jets, plumbing, and equipment. FROG DropH helps bring water back into the ideal range so your spa feels better, looks clearer, and stays easier to maintain.
This 3 lb bottle includes the FROG TruDose Measuring Cap, making routine water balancing more convenient and accurate. Instead of using a separate scoop or measuring cup, simply pour into the cap, measure with the built-in markings, and dose according to the label chart. It is a practical maintenance chemical for hot tub owners, swim spa owners, and anyone using a FROG sanitizing system who wants a cleaner, more predictable water care routine.
Use FROG DropH when your test results show high pH or when total alkalinity needs to be lowered. For best results, test weekly, adjust total alkalinity first, then bring pH into the recommended 7.2 to 7.6 range before maintaining sanitizer.
Key Benefits
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Lowers high pH: Helps bring hot tub and swim spa water into the ideal pH range of 7.2 to 7.6.
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Reduces total alkalinity when needed: Supports proper water balance by helping lower elevated alkalinity.
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Helps prevent scale buildup: Balanced pH helps reduce scaling on spa surfaces, filters, pipes, jets, and equipment.
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Supports sanitizer performance: Proper pH helps chlorine and other sanitizers work more effectively.
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Improves water comfort: Balanced water can feel less harsh and more comfortable during soaking.
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Includes FROG TruDose Measuring Cap: Built-in measuring marks help simplify dosing and reduce guesswork.
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Great for regular maintenance: Ideal for weekly hot tub water testing, swim spa balancing, and ongoing water care.
Product Details
Compatibility and Requirements
FROG DropH is made for use in hot tubs and swim spas where pH or total alkalinity is too high. It can be used with FROG hot tub sanitizing systems, FROG swim spa sanitizing systems, FROG @ease test strips, or another preferred sanitizer routine when used as directed.
Before adding FROG DropH, test your water and confirm your current pH and total alkalinity levels. FROG recommends balancing total alkalinity first, then adjusting pH. Once total alkalinity, pH, and total hardness are in range, sanitizer can be maintained as part of your regular spa care schedule.
For application, add FROG DropH with the jets running while the hot tub or swim spa is not occupied. Keep the cover off while circulating, retest the water, and repeat as needed according to the label directions.
How to Use FROG DropH
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Test your hot tub or swim spa water weekly.
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Check total alkalinity and pH before adding balancing chemicals.
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If pH is high, use the dosing chart on the FROG DropH bottle.
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Pour FROG DropH into the TruDose Cap and measure the recommended amount.
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Add to the water with the jets running while the spa is not occupied.
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Run the jets for 10 to 15 minutes with the cover off.
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Retest the water and repeat as needed until pH reaches 7.2 to 7.6.
Frequently Asked Questions
What does FROG DropH do?
FROG DropH lowers high pH and total alkalinity in hot tubs and swim spas. It is used when test results show that water is too alkaline or above the recommended pH range.
What is the ideal pH range for hot tubs and swim spas?
The recommended pH range is 7.2 to 7.6. Keeping water in this range helps sanitizer work properly, supports clearer water, and helps protect spa surfaces and equipment.
Why is high pH a problem?
High pH can make sanitizer less effective, contribute to cloudy or green water, and lead to scale buildup on filters, pipes, jets, and other spa equipment.
Should I adjust total alkalinity or pH first?
Adjust total alkalinity first. FROG recommends getting total alkalinity into the ideal 80 to 120 ppm range before adjusting pH.
Does FROG DropH include a measuring cap?
Yes. This bottle includes the FROG TruDose Measuring Cap with built-in markings to make dosing easier and more accurate.
Can I use FROG DropH with FROG @ease?
Yes. FROG DropH can be used as part of a water balancing routine for spas using FROG @ease or other FROG sanitizing systems. Always test first and follow the product label.