The ChemDrain CPVC chemical waste drain system offers a safe, durable and economical alternative for the disposal of a wide range of chemicals in institutional, academic and commercial laboratories, the company says. CPVC piping systems are ideal for chemical waste because of their high temperature rating and excellent resistance to a broad range of chemicals. ChemDrain is easier to install than traditional chemical waste systems because it is joined with a specially formulated solvent cement – the most commonly used technique for joining thermoplastic pipe and fittings in the industry, the company notes. Charlotte Pipe and Foundry.