I recently had to have extensive repairs done to my house because of termite damage. In the course of talking to the pest control people--and my research on the internet, I came across a product called "Tim-Bor" which is a borax based powder (remember Boraxo soap?) which is mixed with water and sprayed on new or old wood to prevent termite infestation. The data sheet claims that it also kills the spoors that cause dry rot. <br /><br />According to the MSDS the stuff is pretty harmless. I was wondering if it could have a use in transom or deck cores as well. <br /><br /> http://www.doyourownpestcontrol.com/timbor1.htm <br /><br />Any thoughts?<br /><br />Tony