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Thread: Quikcrete Sand/Topping Mix--should I add more sand?

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  1. #1
    DIY Junior Member jolycu's Avatar
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    Default Quikcrete Sand/Topping Mix--should I add more sand?

    I've been doing a lot of reading concerning setting the shower pan in mortar for support and leveling. From what I've read, it seems most recommend a 4:1 or 5:1 ratio of sand:cement. I'm going to use Quikcrete Sand/Topping mix which I understand is approximately 3:1. Should I plan on adding sand to bring this to a 4:1 or 5:1 ratio, or can I use it straight from the bag?

    This is the shower pan we are installing: http://mobilehomepartsstore.com/Merc...egory_Code=SPN. This is in an 18-year-old mobile home and will replace an existing bathtub. It is 54" x 28", so will one 60# bag of the Quikcrete be enough? We are going to use the "pile method" I've read about on this forum. My husband is a pretty big guy so I want this to be solid and sturdy.

    Thanks for your recommendations.
    Joyce

  2. #2
    DIY Senior Member dlarrivee's Avatar
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    You can add sand if you wish, but it will do the job.

    No need to complicate this.

  3. #3
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    For setting shower bases I use sandtopping mix straight out of the bag and mix it creamy.

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    DIY Junior Member jolycu's Avatar
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    Thanks guys for your answers, I appreciate it. They guys at Lowe's were totally clueless when I told them what I wanted to do. I was looking at the sand/topping mix and they said "Oh, no, you definitely don't want that." They called a guy in the flooring dept and he claimed to have just what I needed. So I went back there and he tried to sell me thinset! I had to explain all over what I was doing and he agreed that thinset wouldn't work and sent me back to the building materials section. I knew I had read on here that someone had used the sand/topping mix, so I just grabbed a bag and got out of there.

    Now, will a 60# bag be enough? Is there a rule of thumb regarding how much to use?

    Thanks again for your help.
    Joyce

  5. #5
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    I think your going to need 2-3 bags....but it depends on your shower and it should never be more than 2" thick,I believe the bag says its good up to 2" thick. Thats about what I use on the ones I do that are a tad bigger then yours.

  6. #6
    Moderator & Master Plumber hj's Avatar
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    According to their technical drawing the bottom of the pan sits on the floor so there may NOT be any "open space" under it for cement, without "lifting it up" and preventing the base from setting solid. All the installation instructions specify that the "foam base" must sit solidly on the floor.
    Last edited by hj; 03-05-2012 at 05:05 AM.
    Licensed residential and commercial plumber

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