PVC pipe purchase considerations

1, select the basic uniform color and luster, inside and outside the wall smooth, flat, no bubbles, depressions, impurities and other surface performance defects affecting the PVC pipe water supply pipe.
2, to see whether the product identification is complete, PVC pipe should be the name of the manufacturer or trademark, production date, product name, specifications size (S or en), the implementation of the standard number, etc., fittings should be the product name (PVC), nominal outside diameter, pipe series S, etc., the wording should be clear, and check whether the logo and the actual match.
3, should buy the same brand of PVC pipe and fittings, because different brands of products may not be the same raw materials, the PVC pipe and fittings fusion will produce adverse factors, long-term use will cause leakage at the fusion joint.