SodaTide is sold with a 60-day money-back guarantee, running from your purchase date, not from when you open the bottle. One current seller page asks for at least 30 days of use before requesting a refund — meaning the practical window to evaluate the product and still qualify is roughly 30 days.
Contact SodaTide's official support directly — not this website — through the contact channel listed on the official checkout page, with your order number, after at least 30 days of use and within the 60-day window from purchase.
Guarantee wording can vary between different seller pages, so confirm the exact written terms at the time of purchase and keep your confirmation. Calendar both the 30-day minimum-use date and the 60-day deadline the day your order arrives.