PVC (polyvinyl chloride) is a common plastic material that is often used to make a variety of products, including hose (water pipes). PVC hoses are commonly used to transport water, for example in households, agriculture and industry.

Under normal circumstances, the PVC hose will not have a significant impact on the water. PVC is a chemically stable material that is not easily broken down or dissolved by water, so it is unlikely to cause appreciable changes to the chemistry of the water. PVC is generally safe and does not release harmful substances into the water and therefore does not negatively affect the quality of the water.

However, it should be noted that under certain circumstances, such as when the PVC material is exposed to high temperature, ultraviolet radiation or chemicals (such as solvents), the PVC may change, causing the performance of the hose to be affected. If the PVC hose is used improperly or with poor material quality, it may cause some slight impacts on the water quality.