<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I would have bet a case of beer the boiling water wouldn't work, because it would be too cool before it reached the grease attached to a giant cast iron tee, and also it wouldn't get splashed onto enough grease to melt it. However, a few gallons of hot sink water followed by a gallon of boiling water, all while plunging furiously, did absolutely nothing at first, but then a few hours later there was no gurgling from the tub and it's been silent for a few days. <div class=""><br class=""></div><div class="">I'll get some of that bacteria/enzyme stuff as preventative maintenance. </div><div class=""><br class=""></div><div class="">The scope sounds like a great idea but the only access I have is from the roof and it's about 12 feet from vent to to sink entry point. If there's a dry day I'll drop a rock on a string down there and see what happens. </div><div class=""><br class=""></div><div class="">Thanks all!</div><div class=""><br class=""></div><div class="">jim<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 7, 2020, at 8:53 AM, Jimmie Mayfield <<a href="mailto:mayfield+shoptalk@sackheads.org" class="">mayfield+shoptalk@sackheads.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">If it's grease build-up, you might try periodically pouring a gallon or two of boiling water down the kitchen sink.</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">You might consider buying one of those cheap USB endoscopes from Amazon or Ebay. I bought one for about $15 on Prime Day a couple years ago. The camera quality is pretty bad but they're pretty long...mine is about 15 feet. You could snake it down your kitchen drain clean-out and see for yourself what's going on inside your pipes.</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">On 12/7/20 08:25, Jim Franklin wrote:</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Maybe some of you have an innovative solution...<br class=""><br class="">My house has a single cast iron soil stack that does both drain and vent. When I flush the toilet, it sucks air from the tub drain. The toilet and tub enter the stack separately, but at the same height, using an oddly specific T with a 4" toilet and a 2" tub inlet about 45 degrees apart. The tub does not have its own vent. 2 years ago I had a plumber snake the vent from the roof, he found "stuff", and it was fixed. Last week it started again.<br class=""><br class="">My kitchen sink T's into the stack at knee height, so it's the highest item on the stack. My thought is, because it's a straight T, not a sanitary T, stuff from the sink is solidifying inside the T when the flow hits the back of the T, and eventually forming a cap of "stuff" just above the T entry, sealing off any venting. I can't tell if the sink is also being used as the toilet's vent because there are too many walls in the way to hear what's happening.<br class=""><br class="">My other thought is that the "stuff" is growing like a mold, and sealing it off. Does stuff grow in drains?<br class=""><br class="">Any thoughts on what it might be, and how to prevent it? I rarely put oils down the drain, and when I do they are cold and mixed with Dawn to emulsify it. There isn't enough canopy for leaves or squirrels to get in the roof vent.<br class=""><br class="">thanks,<br class="">jim<br class="">_______________________________________________<br class=""><br class=""><a href="mailto:Shop-talk@autox.team.net" class="">Shop-talk@autox.team.net</a><br class="">Donate: http://www.team.net/donate.html<br class="">Suggested annual donation $12.96<br class="">Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive<br class=""><br class="">Unsubscribe/Manage:<span class="Apple-converted-space"> </span><a href="http://autox.team.net/mailman/options/shop-talk/mayfield+shoptalk@sackheads.org" class="">http://autox.team.net/mailman/options/shop-talk/mayfield+shoptalk@sackheads.org</a><br class=""><br class=""></blockquote><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; 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