Found 12 results for the keyword ‘Washer’

• Why do plumbing washers have letters and numbers on them?

  I don't really have an answer to the question, but I can help you to understand what they mean. We could find no plumber, nor plumbing manufacturer who could actually tell us the origin of the plumbing code for rubber washers. My guess is that it probably had something to do with the inside diam...

• Does your soldering job leak? Why is lead-free solder hard to work with? And new products to make life easier.

  They took the lead out... Several years ago, throughout North America lead was removed from the solder used for making joints in copper pipes intended for carrying drinking water, just as before that we had removed lead from paint. Lead based solder is still available in stores for other tasks, ...