Q: Our photo lab is located in an old building. We have problems with the copper drain pipes corroding away. Is there anything we can do?

A: That is a very good question and one that seems to be of interest to many labs. The simplest solution is to re-plumb, using PVC or other types of plastic pipes. Let me explain why.

The investigation into this issue quickly focused on the fact corrosion becomes a problem in sections of the drain lines that are close to the processor and have a flat slope. Although there are many theories out .