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Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > DIY Dip Tube
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Old 10-09-2013, 05:15 AM   #21
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That false bottom looks just like the one I bought from More Beer. I've been bugged by the fact that it leaves an inch or more of wort in the bottom of the tun. Great DIY idea to fix that problem! Thanks!


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Old 10-11-2013, 10:13 PM   #22
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The false bottom i picked up from amazon, it was fairly cheap compared to alot of the options i saw out there.


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Old 10-16-2013, 04:56 AM   #23
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I just finished another version of what you did. Instead of soldering things together I decided to try to keep the elbow and plastic tubing that came with the false bottom.

My solution was to cut a brass coupling in half and then screw it into a 1/2" hard copper male/slip adapter. Because pipe threads are tapered I had to cut the coupling more than in half and it was a struggle to get the elbow threads to start. Once started, though, it threaded in OK and everything is really snug. The pickup is about 3/8" off the floor of the mash tun and I can lengthen it now by just adding a very short section of hard copper tubing to fit.

Will try it out on a batch of cream ale this weekend. I'm interested to see how it works. I'm sure it will be far better than the stock setup that left almost a quart of wort behind.
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Old 10-16-2013, 02:58 PM   #24
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Are you going to be boiling that? There's a good chance that plastic tube shouldn't be boiled. Actually, most plastic tubes shouldn't be in water over 120 degrees. I showed a plumber at Home Depot what I was going to do and he shuddered. The only tubing they carried that could safely withstand the heat was a big braided thing that looks like the tubes used in restaurants. That or silicon are the safest bets.
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Old 10-16-2013, 03:15 PM   #25
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Quote:
Originally Posted by TheHairyHop View Post
Are you going to be boiling that?
No, this is the false bottom for my mash tun. The silicone tubing is part of the original setup as sold by the mail-order house.

I agree that I wouldn't want to boil it.
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Old 10-17-2013, 04:41 PM   #26
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The question is why are you worried about leaving only a quart of wort behind? That is nothing.
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Old 10-17-2013, 05:27 PM   #27
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Quote:
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The question is why are you worried about leaving only a quart of wort behind? That is nothing.
Because I'm frugal. I don't want to waste any more of that hard won sugar than I have to.

Used the new setup for a batch yesterday and ended up tossing less than a pint that drained off the grain after I pulled it from the mash tun. Pretty successful mod, IMO.
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Old 10-18-2013, 05:44 PM   #28
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I also can't stand leaving anything behind in my tun (hence the thread!)

What you did above was basically what I did for my first crack at it but the hose seemed to fall off easy and restrict flow so I went with the half inch copper
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Old 10-18-2013, 06:34 PM   #29
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Someone mentioned using brass fittings to connect the copper and stainless to prevent corrosion...will it still corrode with copper to stainless? I thought there was an issue with exposing brass to high temps for extended periods? Something about the zinc leeching but maybe I'm way out to lunch
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Old 10-18-2013, 07:23 PM   #30
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Quote:
Originally Posted by 403Brewer View Post
Someone mentioned using brass fittings to connect the copper and stainless to prevent corrosion...will it still corrode with copper to stainless? I thought there was an issue with exposing brass to high temps for extended periods? Something about the zinc leeching but maybe I'm way out to lunch


With dissimilar metals and moisture,you'll always have corrosion, just some quicker and more aggressive than others.


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