Select More Durable Piping Materials for Supply and Waste Lines
- Select durable piping materials such as Type L copper, cross-linked polyethylene, or braided stainless steel for the following types of applications:
- Hard water: For instance, where the water is hard (e.g., has a high mineral content) a heavier gauge copper—the heavier Type L versus Type M copper—is recommended. CPVC, cross-linked polyethylene (PEX), or polypropylene materials are good alternatives as well.
- Supply risers: Supply risers for sinks, lavatories, and toilets are usually chrome or cross-linked polyethylene. An upgrade to these materials which is more durable and less likely to leak is braided stainless steel flexible piping. Depending on the installation, it is usually easier to install as well.
- Appliance supply lines: Braided steel piping is also suitable for ice maker, refrigerator water dispenser, and dishwasher supply lines as well as washing machine hoses. Leaks in refrigerator and dishwasher lines often go unnoticed for long periods of time because they may not be immediately visible. Such leaks can result in thousands of dollars in damage to floors, drywall, and even structural members. Increasingly, washing machines are located on first or second floors for convenience. Burst hoses or drainage leaks can cause significant damage due to the volume of water. High quality hoses and catch pans are a wise safeguard that can minimize damage.