Hot Tub Things® Metal Out (16 fl oz) – Spa & Hot Tub Stain & Scale Preventer

Product Type: Metal stain and scale preventer for spas and hot tubs

Treatment Method: Chelation and sequestration of dissolved metals

Active Ingredients: Proprietary chelating and sequestering agents (metal-binding formulation)

Form: Liquid solution

Compatibility: All spa and hot tub sanitizer systems including chlorine, bromine, mineral, and salt systems; safe for acrylic spa surfaces and standard spa components

Function: Prevents staining and scale caused by iron, copper, manganese, and other dissolved metals; helps keep metals in solution to avoid surface discoloration

Application Timing: Ideal for use during fresh fills, after adding well or metal-rich water, or following metal-related staining issues

Dosage: Typically 1–2 oz per 500 gallons on startup; maintenance dosage as needed based on water conditions and testing

Water Balance Impact: Does not significantly affect pH or sanitizer levels when used as directed

Maintenance Requirements: Reapply after water replacement, heavy dilution, or significant water loss; routine water testing recommended

Use Frequency: As needed for metal control and stain prevention

Storage: Store in a cool, dry place away from direct sunlight and freezing temperatures

Shelf Life: Approximately 2–3 years when stored properly

Package Size: 16 fl oz bottle

How often should you use Metal Out?Add 2-4 oz per 500 gallons when filling your spa or monthly for maintenance. For heavy metal content, use weekly until water clears.