This advanced guide explains how to safely perform a complete acid wash on your pool to eliminate severe, stubborn stains and thick calcium scale—all without the massive expense or risk of draining your water using No Dran Acid Wash™.
Traditionally, fixing severely stained or scaled plaster meant draining the entire pool, hiring a professional crew, and performing a harsh liquid acid wash on the exposed surface. This method is expensive, wastes tens of thousands of gallons of water, and can even cause an empty pool to physically "pop" out of the ground due to hydrostatic pressure!
No Dran Acid Wash™ revolutionizes this process. By utilizing a specialized chemical formula, it allows you to safely drop your water's alkalinity to zero, creating a controlled, highly acidic environment underwater. This gently and evenly lifts years of severe metal stains and thick calcium scale right off the walls and floor, while your water stays safely in the bowl. Because it is a powerful corrective procedure, strict adherence to the timelines and rebalancing steps is required to ensure a flawless finish.
Crucial Safety Rule: Do not add this product directly to an oxidizer (such as chlorine, bromine, non-chlorine shock, hydrogen peroxide, etc.).
Temperature Check: Wait for the pool water temperature to reach 60°F or higher.
Lower Chlorine: Drop your chlorine level to below 1 ppm (the lower, the better). You can use a chlorine neutralizer like No Mor Chlor™ to achieve this quickly.
Prevent Algae: Because your chlorine will be low, apply a preventative algaecide like Poly60 Treat™ prior to treatment.
Power Down: Turn OFF all pool equipment and automated schedules. Do not allow the pump to turn on at any point during the wash procedure.
Protect Metal: Thoroughly coat any exposed metal surfaces in the water (like light rings or stainless steel ladder rails) with petroleum jelly to protect them from the acidic water.
Phase 1: Starting the Wash (Dosing per 5,000 Gallons)
The following measurements are for every 5,000 gallons of pool water.
Phase 2: The Dwell Time and Brushing
Phase 3: Rebalancing the Pool (Crucial Step)
Once the stains and scale have lifted (or on the 6th day maximum), you must rebalance the water carefully to lock the metals in solution.
Troubleshooting Note: To ensure your newly restored pool finish stays flawless, we highly recommend incorporating a weekly maintenance dose of No Mor Stains & Scale™. This will keep any remaining micro-metals sequestered and prevent future calcium buildup.