Frequently Asked Questions

• Is 303® Multi-Surface Cleaner safe for hot tub covers?
  Yes! The 303® Multi-Surface Cleaner is specifically formulated to be safe for vinyl hot tub covers. Its pH-balanced formula won't degrade the vinyl or stitching, and it helps remove dirt, oils, and environmental contaminants that can shorten your cover's lifespan.
• Can I use this cleaner on my acrylic hot tub shell?
  Absolutely. The 303® Multi-Surface Cleaner is safe for acrylic, fiberglass, and gel coat surfaces. It won't scratch or dull the finish, making it perfect for cleaning your spa shell above the waterline.
• How often should I clean my hot tub cover with 303®?
  We recommend cleaning your hot tub cover with 303® Multi-Surface Cleaner every 2-4 weeks, or whenever you notice dirt buildup. Regular cleaning prevents contaminants from breaking down the vinyl and extends your cover's life by years.
• What's the difference between 303® Cleaner and 303® Protectant?
  The 303® Multi-Surface Cleaner removes dirt, grime, and contaminants, while the 303® Aerospace Protectant provides UV protection and conditioning. For best results, clean first with the Multi-Surface Cleaner, then apply the Protectant for long-lasting protection.
• Is this cleaner safe to use around my spa water?
  Yes, the 303® Multi-Surface Cleaner is biodegradable and safe to use around your spa. However, avoid spraying directly into the water. Wipe surfaces with a damp cloth to remove any residue before entering the spa.
• Will this cleaner work on stubborn stains?
  The 303® Multi-Surface Cleaner is effective on most common stains including dirt, oils, and light mildew. For stubborn stains, allow the cleaner to dwell for 1-2 minutes before wiping. For heavy mildew, consider the 303® Mold & Mildew Cleaner for targeted treatment.