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Thread: Install Drake II questions on steps in write-up

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    DIY Junior Member azmikie's Avatar
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    Default Install Drake II questions on steps in write-up

    First off, I am no plumber, so sorry if these question are something assumed to be known information.
    1. In steps 8 and 9 it says to install the tank bolts when you install the tank to the bottom using only one nut per bolt. My assembly instructions tell me to install the bolts to the tank with a nut and the the tank to the bottom with a second nut. Can you clear this up for me?

    2 In the next post by Terry it says under the wax ring picture "Notice that the bag of bolts includes four nuts and four washers." My floor mounting kit only came with two bolts, two nuts, two plastic washers and two metal washers. What is the second set of nuts for in the one you have pictured?

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    DIY Senior Member wjcandee's Avatar
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    These are actually good questions.

    First: single-nutting vs double-nutting the tank installation. The preferred way explained on this forum is the double-nut approach, and it's traditional. You take the rubber washer and slide it over the bolt. You insert the bolt into the tank. Only the bolt head and rubber washer are inside the tank. To ensure that this connection stays straight and firm, you put a metal washer and nut on the outside of the tank. This compresses the bolt head absolutely-vertically into the rubber washer, and seals the bolt hole in the tank. So, when you go to tighten the tank onto the bowl, you don't end up applying pressure more on one side of the washer than the other, or pulling the tank down any way but vertically. Now, you mount the tank onto the bowl, and use a rubber washer, metal washer, and the other nut underneath the bowl to do so. This is the way Toto recommends it. It's the way that Fluidmaster and Korky did their toilet rehab kits for years. Then, the manufacturers found out that lots of DIYs and some pros would just chuck the extra washers and nuts, using only one of each, because they don't read directions. Korky claims to have done lots of research and swears that there is no advantage to double-nutting, but admits that they saved some $$ by revising their kits to eliminate the extra set of hardware. Personally, I think you are better off long-term double-nutting. My own experience with a Korky kit was that the first go-round had the bolts at something of an angle to the bottom of the tank by the time I was done slowly tightening the tank down bit by bit to compress the tank-to-bowl gasket and get a firm connection between tank and bowl; it didn't leak around the bolts, but in a few years, it most likely would have. I detached the tank and started over. It took a whole lot of extra care to get that bolt-head/washer seal perfectly-vertical while tightening just the one nut from underneath the bowl, in part because the bolt was having to penetrate two holes but being held in place only by the tension applied from underneath the furthest hole. I love the folks at Korky but I disagree with their analysis, if for no other reason that it makes it harder to get it right the first time. At a minimum, double-nutting is chicken soup -- can't hurt. And Toto gives you the hardware you need to do it right. On the Jamie instructions, he doesn't really say not to do that; I think it's subsumed in the instructions about using the hardware.

    Second: Double-nutting the closet bolts. Most manufacturers don't tell you to do this. The way you see in the Toto instructions is to stand the closet bolts up in the flange, to the extent that they will stand, then mount the toilet on them, then on top of the toilet put the plastic base cap, washer and secure with the nut, cut the extra length of closet bolt with a Dremel or hacksaw, and install the cap on top. What many pros do (and Terry is one) is to use that extra nut and washer to secure the closet bolt to the flange first before mounting the toilet. Instead of just having it dangling there loosy-goosy trying to stand up in the flange, you position it where you want it and use the extra washer and nut to secure it to the flange before you put the toilet on top. That way, they stay standing up straight where you want them when you put the toilet on top. Some kit manufacturers now give you a little plastic sleevy thing to prop them up. The nut and washer work best, and for a first-timer, they actually cut the time, even though you have to take time to attach them.

    Bottom line, neither way is wrong, but the consensus on here (and Terry's way) is to double-nut both connections. As you can see, there is no downside to doing it this more cautious, thorough way, and logical reasons for doing so.
    Last edited by wjcandee; 10-15-2012 at 11:14 PM.

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    DIY Junior Member azmikie's Avatar
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    Thank you very much for the response.

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    DIY Senior Member wjcandee's Avatar
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    Happy to help!

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    Forum Admin, Expert Plumber Terry's Avatar
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    When Jamie wrote those instructions, they only came with one nut and washer for each bolt. Several years ago, TOTO started sending two nuts and two washers for each tank to bowl bolt. It makes a much better connection.

    I had added this picture showing the extra nut and washer, but forgot to change the text.



    Snugging up the large nut

    Last edited by Terry; 10-29-2012 at 11:58 AM.

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    DIY Member piezomot's Avatar
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    Hello Terry, I was following this advice below and just installed Toto Drake II toilet today. I refer to this procedure - "...it is not necessary for the tank to touch the bowl on all sides, a little gap all the way around is fine... ".
    http://www.terrylove.com/forums/show...-by-Jamie-Love

    Only problem I have with it - water tank rocks, see my picture below.

    I installed tank bolts 3 properly, not to brake the ceramic, but the tank would rock forward and back each time I touch the handle to flush the toilet. This is because there are two gaps 1 and 2 between tank and bowl.

    I just placed elastic into gap 2 as a temporary fix, as I do not know if this Toto Drake II design problem or just my toilet has such defect.

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    Last edited by piezomot; 10-26-2012 at 07:43 PM.

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