7 shapes stainless steel Drainage Cover

Name: Black stainless steel Drainage Cover Brand:G.i.S Color: Black Material: Stainless steel Machining Process: Mold Surface Treatment: Painting Package Detail: Carton/pallets, or according to the customer's order. Delivery Detail: Whole or partial shipments transported, or according to the customer's order.Guarantee 1. We promise our products are in high quality and at reasonable price. 2. Don't worry about the delivery time, because we are always on time. 3. We do everything according to the terms and conditions in the contract. 4. We offer unique solutions to your products with reasonable price, good quality and best service Drainage Cover start from the first manhole or inspection chamber to the septic tank or sewer system. After laying the pipes, before use the drains should be tested. Each section in between the manholes should be tested. Its appropriate that this is done at least twelve hours after jointing the last pipe. There are various methods of checking the system. This ensures that the system is air tight to avoid foul smells and leakages along the lines.The testing of drainage pipes after laying commences with the following method. First the lower end of the pipe and all junctions are securely stopped. The whole length is then filled with water. After filling with water, a stopper is inserted at the top leaving a pipe attached with drain plug. This pipe is bent at ninety degrees and terminated at an elevated tank. The vertical distance of elevation should be at least one meter. This will give gravity flow.