In the process of repainting my wrought iron fence, I had discovered that in a few of the rails, water started to leak out at the weld joints attached to the bottom rail while removing paint & rust with a steel brush! Apparently, water had entered through gaps in the weld joints of the rails directly under the top rail during the rainy season and has been trapped over the dry months until just recently when I had removed enough paint around the weld joint allowing water to seep out! (Wondering if there are additional rails that have water trapped but hadn't leaked out due to good weld joints at bottom rail!)
My question is how best can I drain the water from the rails that have water trapped within prior to my resealing the weld joints with new primer and paint? Would it be practical to try to blow the water out with an air compressor or is my best bet to simply drill a hole near the bottom of each rail? I suppose I could simply reseal the water within with new paint, however, I would imagine that the water would rust the interior of the rail tubes! Also, might be good idea to caulk all of the weld joints under top rails to prevent additional water penetration in the future!