If your pool measures about 500 square feet then, an acid wash might cost you about $175 to $250. The price includes the labour cost and necessary chemicals as well. If you want to perform the wash on your own, then you will save labour charges and will need to spend only on chemicals that might cost you around $30.Click to see full answer. Similarly, it is asked, how much does it cost to acid wash an inground pool?Acid Wash Pool Cost. The cost to acid wash a pool depends on your geographical location, the pool’s accessibility, the time of year and the size of the pool. For a pool measuring approximately 500 square feet, the costs usually range from a low of $178 to a high of $255.Secondly, how much does it cost to drain pool? For pools with persistent stains or other problems, having it drained, cleaned, acid- or chlorine-washed, and then refilled with fresh water and chemicals bumps the cost to $150-$800, depending on the size of the pool, the amount of cleaning needed and if the filtering system needs flushing. Likewise, how often should you acid wash a pool? Your pool generally only needs an acid-washing every five to seven years if you regularly treat and maintain the water in it, recommends the Bratton Pools website. Acid-washing your pool more often can damage the plaster coating inside the pool because the acid strips away a small layer of it each time you do it.Can you acid wash a pool without draining?No Dran® Acid Wash is the only way to acid wash your swimming pool without draining water. Its patented acid mixture and process is strong enough to lift the toughest stains and scale without draining water. Yet it’s also formulated to be safe for any surface, reducing the dangers of etching and discoloration.