Beemer533
Well-known member
The conduit for my shop's phone line was terminated inside a building on one end, and under a big overhang, and inside an electrical box on the other. No way rain got in, and FL soil is pure sand, and I know the water table wasn't that high. I assume it was condensation from the humid air. It was always full of water, even after I sucked it out with a shop vac. Within a couple weeks, it was full again. I never was able to find a decent phone cable. The cheap stuff lasted about 6 months; I got 2 years out of some more expensive stuff.
You aren't using the right cable then. The outdoor, gel filled (or tape) cable will last a very long time, especially protected in conduit.
I've installed miles of outdoor CAT5e for work that is still fully functional 7 or 8 years later.
We use it on towers for our POE radios (no conduit).
http://www.amazon.com/dp/B008L143VW/?tag=atomicindus08-20