Water heater pilot tube keeps getting condensation in it
To me it sounds like you need a drip leg. A drip leg is usually installed after the local shutoff valve it is a simple T with a 6" or longer nipple that is capped pointing down. With a drip leg the moisture and some rust fall into the nipple, I have had a home that I had to clean the drip leg every year, others never needed cleaning 1 drop of water in your gas valve or pilot is enough to cause problems and a 6" drip leg is usually enough for most homes.