PVC pipes can warp or soften from heat produced by the chemical. With steel pipes, excessive use might cause area corrosion As well as in Serious conditions could even bring about cracks and holes. Lemon Juice Lemon juice is a good antioxidant—it is a boon for the drains far too. https://rowan1pyho.bloggazza.com/30714905/5-simple-techniques-for-how-to-clean-drains-in-arar