Professional products for crystal-clear water.
Pool chemicals, testing supplies and commercial water-treatment solutions backed by knowledgeable, personal service.
Everything needed to maintain clean, balanced water.
Find professional pool-care products for sanitation, balancing, algae prevention, water clarity and routine testing. Call for current availability and pricing.
Chlorine Products
Dependable sanitizers that help control bacteria and keep pool water safe and clear.
- Liquid chlorine
- Chlorine tablets and sticks
- Calcium hypochlorite
Shock Treatments
Fast-acting treatments for restoring sanitizer levels and addressing dull, cloudy or heavily used water.
- Routine pool shock
- Opening and closing treatments
- Problem-water treatments
Algaecides
Products for preventing and treating common algae conditions.
- Preventative algaecides
- Green-water treatment
- Seasonal maintenance
Water Balancers
Maintain proper pH, alkalinity and calcium levels to help protect swimmers, surfaces and equipment.
- pH increaser and reducer
- Alkalinity control
- Calcium hardness products
Clarifiers & Specialty Care
Targeted products for improving clarity and addressing common maintenance issues.
- Water clarifiers
- Stain and scale control
- Cleaners and foam control
Testing Supplies
Accurate testing helps identify water-balance problems before they become larger issues.
- Test kits
- Test strips
- Replacement reagents
Water-treatment support for facilities and professionals.
Crystal Chemical supplies water-treatment products for commercial, institutional and municipal customers. Call to discuss product needs, quantities and current availability.
- Commercial swimming pools
- Schools and institutional facilities
- Municipal water-treatment needs
- Bulk product requirements
- Regional customer service
Call before bringing in a water sample.
A water test can help identify sanitizer, pH, alkalinity and calcium problems so you can choose the appropriate treatment. Call first to confirm current testing and sample drop-off arrangements.
Call Crystal Chemical
Confirm current water-testing availability before collecting your sample.
Collect a water sample
Use a clean container and collect water from below the surface, away from return jets.
Get practical recommendations
Testing can help identify which adjustments and products may be appropriate for your water.
Start with what you see in the water.
Common symptoms may have several causes. Testing the water before treatment can help avoid adding unnecessary chemicals.
Green water or visible algae
Green water often indicates algae growth caused by low sanitizer, circulation problems or filtration issues. Testing can help determine the appropriate next step.
Cloudy or dull water
Cloudiness may relate to filtration, low sanitizer, high pH or poor water balance. Check circulation and water chemistry before choosing treatment.
Low chlorine reading
Sunlight, heavy use and contamination can quickly reduce available chlorine. Testing can help determine whether a routine sanitizer adjustment or shock treatment is needed.
High or low pH
Improper pH can reduce chlorine effectiveness and contribute to swimmer discomfort, scaling or corrosion.
Stains or scale
Surface discoloration may involve minerals, metals or water balance issues. Identifying the cause before treatment can help avoid unnecessary products.
Still not sure what the problem is?
Call Crystal Chemical at 781-245-4159 to discuss what you are seeing and whether water testing may help identify the issue.
More than products on a shelf.
Crystal Chemical combines professional products with practical assistance to help customers make informed water-care decisions.
Established Experience
Serving customers with water-treatment knowledge since 1946.
Expert Guidance
Call and speak with people who understand pool and water chemistry.
Free Water Testing
Call first to confirm current testing and sample drop-off availability.
Residential & Commercial
Products and assistance for homeowners and professional facilities.
Not sure which product is right?
Call Crystal Chemical before buying chemicals or bringing in a water sample. We can help you determine the best next step.