<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Hank,</div><div>One of the main concrete water tank manufacturers in Australia was looking in </div><div>to using their tanks for dual purpose, water storage & emergency safety room in the event of a forest fire.</div><div>Great idea as you could try & save your house & then climb in to your tank at the last minute. They said the thermal insulation from a fire was really good.</div><div>Alan</div><div><br></div><div><br>On 13/04/2020, at 11:54 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Hi All, I am starting a project tomorrow, I am building an underground emergency shelter that is fully self contained. I am installing a CO2 scrubber. I want a charcoal filter as well, and I would like the CO2 scrubber to do both jobs. Is there any reason I can not mix activated charcoal with absorbent. Is it better to have separate layers of media?</div><div dir="ltr" data-setdir="false">Hank</div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>