My house was built in 1953 and my guess is that this pipe joint is
original, so...

1) Did plumbing solder in 1953 contain lead?
2) Can I test some of the solder blobs easily?
3) Should I consider replacing all of the pipes in my house? (Note: I
have a small ranch house with easy access to all of the plumbing; this
would not be a difficult job for me.)


You can send a vial of water out for testing, or use a testing kit with a
Q-tip rubbed on the solder.

But, rather than changing all your pipes, you can just install a water
filter in your kitchen which will trap up to 99% of it Just running your
tap for 2 minutes in the morning will clear out any lead that leached
overnight, too.

I grew up in a house with lead solder. Just think, I'd probably be a genius
right now were it not for the lead that I consumed

http://www.omnifilter.com/