Metal and Scale Control
Metal sequestrants and scale control products help manage source-water metals, hardness, and deposits in some spas.
Why this chemical is used
These products do not replace balancing pH, alkalinity, and calcium hardness. They are helpers for specific water problems.
When it is needed
If you see staining, colored water, white scale, or recurring flakes, test source water and check saturation balance.
How to use it safely
- Test before adding anything.
- Calculate dose based on actual spa volume.
- Add chemicals separately with circulation running.
- Wait, circulate, and retest before adding more.
- Follow the product label and spa manufacturer instructions.
Small spas are easy to overdose. When unsure, add less, circulate, and retest.
Recommended spa supplies
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