Daisy
Last Updated: Feb 6, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Raises Ph, In Spa Water
Country Of Origin: United States
No Assembly Required
Brand Name: Clorox Spa
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BackyardPoolSuperstore | 9.80 | ❌ | ❌ | ❌ |
Adjusts Water Ph And Alkalinity Downwards
Fast-Dissolving Granular Product
Easy To Use
No Assembly Required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| EcoClean Solutions | 9.93 | ✅ | ✅ | ✅ |
Concentrated Granular Sodium Bisulfate.
Biodegradable, Non Toxic, Safer the Muriatic acid
10 lbs. granular pH Reducer = 1 gal. muriatic acid
Saver and easier to store.
Initial Dosage: 15-30 oz. per 10,000 gallons.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BackyardPoolSuperstore | 9.80 | ❌ | ❌ | ❌ |
BRAND NEW PACKAGING! New resealable bag design allows chemicals to be easy to store & use!
ACTIVE INGREDIENT: Cyanuric Acid 100%
STABILIZER (cyanuric acid) helps protect chlorine in pool water from dissipation caused by sunlight. Use if intense sunlight causes difficulty in maintaining a chlorine residual.
DOSAGE: Add 1 lb to raise 10ppm per 10,000 Gallons
See Package for Instructions on Use
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LeisureQuip, Inc. (HotTubClub) | 9.83 | ✅ | ✅ | ✅ |
Contains: Alkalinity Increaser 2lb, Calcium Increaser 1lb, pH Increaser 1lb, pH Decreaser 1.5lb, ScumBoat Floating Scum Absorber, and Pool & Spa Care Log Book
This spa care bundle includes the chemicals needed to balance the water in your hot tub or pool. Use test strips or a test kit to see what your current water pH, alkalinity, and calcium levels are. Use the chemicals in this kit to raise/lower the levels to ensure proper balance in your pool or spa.
This spa & pool balancer kit includes the chemicals needed to bring the water to the correct pH, alkalinity, and calcium levels as well as a scum absorber to help keep oils from building up on the waterline.
LeisureQuip pool & spa balancer chemical kit to protect equipment from damage while balancing water for bather comfort
LeisureQuip Alkalinity Increaser raises the total alkalinity of your pool or hot tub to protect your equipment from corrosion and minimize pH bounce. Low total alkalinity can cause corrosion to your equipment which can lead to staining and repair bills. Properly balanced total alkalinity also reduces pH bounce.
LeisureQuip pH Increaser and Decreaser raises or lowers the pH level in your pool or spa water to help protect your skin and your equipment. Proper pH balance is critical to make sure sanitizers and shocks work effectively.
LeisureQuip Calcium Hardness Increaser raises the calcium hardness of your hot tub to protect your pool or spa against corrosion, extending the life of your equipment and protecting surfaces.
ScumBoat Floating scum absorbers absorbs up to 40 times its weight in residual body oils, suntan oils, grime, slime, and scum to help keep your pool or hot tub clean. Prevents scum build-up on the waterline, cloudy pool or hot tub water, and clogged filters. Compatible with all types of pool and spa sanitizers including chlorine, bromine, and more.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pool Supply World | 9.63 | ❌ | ❌ | ❌ |
Use when total alk. drops below 80 ppm.
Keeps your pH and Chlorine from becoming unstable Granular form, easier to apply into your water
Compatible with pool, spa, and hot tub
Dosage: 1-1/2 pounds per 10,000 gallons will raise the alk. level by approximately 10 ppm
Retest water after every dosage added, you can swim after 4 hours of circulation 5 lb bag.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Crystal Branches | 9.60 | ❌ | ❌ | ❌ |
✅ Controls the pH level of water in swimming pools & hot tubs
✅Fresh Acid Has Higher Potency Always Buy Direct From Manufacturer (CPDI)
✅ Brightens concrete & masonry suraces
✅ Vapor Reduction Technology reduces up to 90% of harmful vapors compared to standard muriatic acid
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| iONRx | 7.91 | ✅ | ✅ | ✅ |
Eliminate overwhelming chemicals in hot tubs. No more chemical smell or issues like rashes, itching, coughing, sneezing, tight skin or faded suites.
The most natural hot tub water there is. Used over 10 years commercially, now available for residential hot tub treatment. Easy maintenance for worry free hot tubbing.
iONRx must be used with ultra low levels of chlorine. pH should be maintained as well.
Safe, natural and crystal clear hot tubs and spas without chemical smells or that gross chemical feeling. Get out of the hot tub feeling fresh and clean. No more showering after the hot tub.
Patented technology. Add 4 oz. per 100 gallons once a week with tap water levels of chlorine. Works with any hot tub or spa, including inflatable or ones previously used with bromine. Does not work with bromine. Hot tubs with bromine or enzymes need to be drained and refilled.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BackyardPoolSuperstore | 9.80 | ❌ | ❌ | ❌ |
Alkaline increaser for pool and spa, available in resealable bags for easy storage.
Pool alkaline increaser active ingredients: Sodium Bicarbonate
Total alkalinity helps stabilize the pH balance in your pool, reducing maintenance and preventing eye and skin irritation.
Directions: Spread over the deepest part of the pool and circulate pump a minimum of 4 hours.
Dosage: 1.5lbs per 10,000 gallons to raise total alkalinity level 10ppm.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Save More On Pool Supplies | 9.77 | ❌ | ❌ | ❌ |
REDUCE CHLORINE LOSS - Rx Clear Conditioner and Stabilizer helps protects chlorine from sunlight and prevents chlorine loss caused by the sun's rays. Adding stabilizer when opening your pool for the season greatly increases chlorine effectiveness and will actually cut chlorine consumption.
COST EFFICIENT - Customers save money when they use Rx Clear Conditioner and Stabilizer. When you use this product for your swimming pool, you can cut chlorine consumption by up to 25%. Protecting your chlorine from burning off under the sun's rays with a chlorine stabilizer means longer lasting sanitation. Longer lasting sanitation means more splashes, more dives, and more pool fun!
EASY TO USE - Add this product to your pool in the spring and you will improve chlorine effectiveness all season long. Use a reliable test kit to determine the stabilizer concentration in the pool water. Add directly to the skimmer. Be sure the filter is clean. Recirculate the water continuously for 24 hours to dissolve completely.
KEEPS POOLS CLEAN - Rx Clear is the ultimate prescription for a crystal-clear swimming pool. Steer clear from the threat of unwanted growths and unsafe pH levels. Rx Clear is your one-stop shop for all the chemicals your pool needs this summer. Rx Clear delivers fast-acting chemicals with powerful results.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Doheny's Pool Supplies Fast | 9.86 | ❌ | ❌ | ❌ |
Swimming Pool Supplies: The ideal addition to your supply of pool chemicals, as every perfect pool starts with the proper pH levels
Multi-Purpose pH Plus: This pH increaser for pools helps increase the effectiveness of all your other pool chemicals
Benefits of Properly Balanced pH: Our pH plus helps reduce equipment corrosion, eye irritation, and skin dryness
Ingredients: Sodium Bicarbonate or "Soda Ash"
Packaging: Available in convenient-to-use 5- and 10-lb pouches or 25-lb bulk bucket
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Doheny's Pool Supplies Fast | 9.86 | ❌ | ❌ | ❌ |
Swimming Pool Supplies: The ideal addition to your swimming pool supplies and pool chemicals, as the perfect pool starts with establishing the proper pH levels
Pool Alkalinity Increaser: Balanced alkalinity levels (80-120 ppm) allow you to better control your pH levels; always adjust your alkalinity levels before your pH levels
Benefits of Balanced Alkalinity: Increase the alkalinity of your pool to reduce surface etching, eye irritation, and skin dryness
Ingredients: Contains Sodium Bicarbonate or "Soda Ash"
Packaging: 5- or 10-lb ready-to-use pouches or 25-pound bucket available
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BackyardPoolSuperstore | 9.80 | ❌ | ❌ | ❌ |
Reduces or eliminates excessive chlorine or bromine levels
Contains special 100% sodium thiosulfate crystals
Works quickly and effectively
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Jamlyn-Supply | 9.94 | ✅ | ✅ | ✅ |
BENEFITS: Ensures that your spa or hot tub water has a balanced and lasting pH level
USE: Use this product each time you refill your spa with water; Not for use in hard water (calcium levels above 150 ppm); One quart treats up to 500 gallons of water
COMPATIBILITY: Works with chlorine, bromine, ozone and mineral purification systems
FEATURES: Prevents pH drift
INCLUDES: One 32-fl oz bottle of Leisure Time pH Balance
Not for use in hard water (above 150ppm)
One quart treats up to 500 gallons of water
Prevents pH drift
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MAV Aqua Doc | 9.82 | ✅ | ✅ | ✅ |
Why Hot Tub pH Increaser? Did you know that the water in your spa should be maintained at a pH of 7.2 to 7.8 and total alkalinity from 80 to 140 ppm? Using a pH up for hot tub spa will help you maintain your hot tub chemistry effectively.
pH Up For Hot Tub Spa - Our pH increaser for hot tub will help you maintain your hot tub chemistry balance. If your spa's pH measure is below its range, it is essential to use a hot tub pH booster to treat cloudy tub, scale build-up, and more.
Spa pH Increaser For Hot Tub - When your hot tub pH is not at an ideal level, it indicates that your hot tub water is too acidic, and your sanitizer will be less effective. Using a pH increaser will also help you raise the total alkalinity level.
Adjust pH Levels - Incorrect pH levels can impact the water quality, imbalance other chemicals, and cause the water to give itchy skin and eyes. Our pH up also acts as an alkalinity increaser for your hot tub by balancing the total alakalinity.
pH Increaser For Hot Tub Made In The USA - At AquaDoc, we make high-quality spa chemicals to help balance your hot tub and spa chemistry and treat them with care. When you choose AquaDoc, you are getting consistent quality.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bargain Ben | 9.74 | ✅ | ✅ | ✅ |
EASY POOL MAINTENANCE: Ensure your salt water pool and mechanical accessories operate smoothly; Use twice monthly to keep your salt water pool clean and clear
FOR SALT WATER: 2 pound blend of concentrated maintenance chemicals for salt water pools
CLEAR WATERS: Helps sanitizers work more efficiently and makes pool water clearer
STABILIZED BALANCED: Prevents pH fluctuations and helps maintain proper low phosphate levels
SPECIFICATIONS: Color: White; Dimensions (L x W x H): 9.65 x 3.11 x 2.95 inches; Weight: 2 pounds; Manufacturer warranty: 6-month warranty; Note: This item cannot be shipped to California and will be cancelled/refunded if order is placed.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pools "n" Tools ٩(◕‿◕)۶ | 9.87 | ✅ | ✅ | ✅ |
Eliminates excessive chlorine, bromine or hydrogen peroxide residual
Dissolves instantly
Reduces pool downtime
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Clearview Fireplace & Patio | 9.87 | ✅ | ✅ | ✅ |
Poolife pH Plus balancer raises the pH of swimming pool water
The ideal pH range is 7.2-7.6.
Maintaining a pH level below 7.2 keeps your sanitizer from working effectively and can cause equipment corrosion, eye irritation and skin discomfort.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pool Supplies Superstore | 9.83 | ❌ | ❌ | ❌ |
Natural cyanuric acid reducer powder by disintegrating it at a molecular level and causes no adverse effects on pools
Helps eliminate chlorine lock due to high cyanuric acid levels and allows sanitizers to be more effective
Non-allergenic, non-polluting, and leaves no residue with a mildly sweet and earthy odor feature
Suitable for outdoor commercial and residential swimming pools with a 50,000-gallon water capacity
Includes a 16 ounce bag; Micro-organisms (biosafety level 1): 0.1-percent to 1.0-percent; Dextrose (monohydrate): 95.0-percent to 99.0-percent
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Save More On Pool Supplies | 9.77 | ❌ | ❌ | ❌ |
pH BUFFER - Helps prevent PH bounce, "locks" pH in the ideal range by neutralizing acids like acid rain. It boosts up the effectiveness of your pool water cleaner and is user friendly. Add 1 Lb per 8,000 gallons to raise 10 ppm. Maintain total alkalinity to 80 to 120 ppm.
ALKALINITY CONTROL - Alkalinity Control is used when pH levels fluctuate widely over a short period of time. A low total alkaline reading is also indicative of corrosive pool water, a blue or green cast to the water and difficulty in holding chlorine residuals. Low alkalinity can cause equipment and plaster damage. If the alkalinity is too low or too high, the pH of the pool water will be difficult to maintain in the proper range. This product is used to increase the total alkalinity in swimming
WATER CHEMISTRY - One of the most important aspects of proper swimming pool care involves the maintenance of balanced water chemistry. When swimming pool chemicals are not in balance, swimmers can be at risk of contracting illnesses and suffering from skin irritation, the water can turn dull and cloudy, and pool equipment and surfaces can become damaged.
REDUCES IRRITATION - This product will quickly correct acidic water conditions in your pool, spa, or hot tub. It will slow the rapid dissipation of chlorine caused by acidic water that will help reduce eye irritation or redness, and is soft on the skin helping to reduce itchy or irritated skin after a swim.
PREVENTS CORROSION - Rx Clear Swimming Pool Alkalinity Plus helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter. Also prevents etching, pitting, and delamination of concrete, plaster, gunite, shotcrete, and fiberglass pools.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Doheny's Pool Supplies Fast | 9.86 | ❌ | ❌ | ❌ |
Swimming Pool Supplies: The ideal addition to your supply of pool chemicals, as every perfect pool starts with the proper pH levels
Multi-Purpose pH Minus: This pH decreaser for pools helps increase the effectiveness of all your other pool chemicals
Benefits of Properly Balanced pH: Our pH minus reduces high pH levels while helping reduce equipment corrosion, eye irritation, and skin dryness
Ingredients: Sodium Bisulfate or "Dry Acid"
Packaging: Available in convenient-to-use 5- and 10-lb pouches or 30-lb bulk bucket
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Doheny's Pool Supplies Fast | 9.86 | ❌ | ❌ | ❌ |
Swimming Pool Supplies: The ideal addition to your supply of pool chemicals, as every perfect pool starts with the proper pH levels
Multi-Purpose pH Minus: This pH decreaser for pools helps increase the effectiveness of all your other pool chemicals
Benefits of Properly Balanced pH: Our pH minus reduces high pH levels while helping reduce equipment corrosion, eye irritation, and skin dryness
Ingredients: Sodium Bisulfate or "Dry Acid"
Packaging: Available in convenient-to-use 5- and 10-lb pouches or 30-lb bulk bucket
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Clearview Fireplace & Patio | 9.87 | ✅ | ✅ | ✅ |
BENEFITS: Raises spa water to the recommended level of calcium hardness to prevent corrosion
USE: 1 lb per 10,000 gallons to raise calcium hardness by 10 ppm; Maintain levels between 180-250 ppm for vinyl pools and 200-275 ppm for plaster pools
COMPATIBILITY: Works with chlorine and bromine sanitized pools
FEATURES: Chlorine free; Concentrated formula
INCLUDES: One 3.5-lb container of Baquacil Calcium Hardness Increaser
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SCIHTE | 4.96 | ❌ | ❌ | ❌ |
Wall-mounted Design For Easy Installation.
Equipped With BNC Composite Electrode At The Same Time, It Is Convenient To Replace The Electrode All Over The World.
Use To Measure The PH / Of Solution, Separates PH And Electrode, Precise Measurement.
Wide Range Of Use, Apply In Water Sources, Aquarium, Hydroponics, Spas, Swimming Pools And Other .
Application: Water Quality Analysis Instrument.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Raises pool water pH levels by neutralizing water acidity
Reduces eye and skin irritation by neutralizing water acidity
Slows the rapid dissipation of chlorine caused by acidic water
1% Sodium Carbonate (Soda Ash)
Initial Dosage: 1 lb. per 1, gallons
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| In The Swim Pool Supplies | 9.93 | ❌ | ❌ | ❌ |
Use when total alk. drops below 80 ppm.
Keeps your pH and Chlorine from becoming unstable Granular form, easier to apply into your water
Compatible with pool, spa, and hot tub
Dosage: 1-1/2 pounds per 10,000 gallons will raise the alk. level by approximately 10 ppm
Retest water after every dosage added, you can swim after 4 hours of circulation 5 lb bag.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Doheny's | 4 |
| In The Swim | 3 |
| Leisure Time | 2 |
| Puri Tech | 2 |
| Rx Clear | 2 |
| Api Water | 1 |
| Applied Biochemists | 1 |
| Baquacil | 1 |
| Bio-Active Products | 1 |
| Bioguard | 1 |
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