When purchasing pipes, do not purchase cheap low quality pipes because they are to be kept underground. There are lots of low-quality cheap pipes available in the market. Make sure the plumbing and fittings, used are of high gain.
The best pipe of these are the PVC pipes. These pipes can eliminate underground leakage and chemical reactions. Bends should be avoided as much as possible in these pipes. Complicated shapes in the bend will not only reduce the water flow, but this will also result in an accumulation of food waste. To avoid blocks, use curved pipes. You can also use pipes with springing bend for this purpose. Ceramic washers have been introduced as a solution to leakage in pipes. Rubber washers were used before this. But those washers had a shorter life span. With its long life span, ceramic washers will prevent leakage for a long time.