Tub Flexing Problem - Kitchen & Bath Remodeling - DIY Chatroom Home Improvement Forum

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Old 10-14-2014, 02:03 PM   #1
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Tub Flexing problem


I'm new to the forum and have a problem with a tub a contractor installed for me about a year ago. I purchased an American Standard Evolution Deep soak acrylic tub through the plumbing supply place recommended by my contractor. The tub is now flexing pretty good as I'm a bigger guy 230lbs when I walk in it. After doing some investigating I found there is no mortar under the tub and after I brought it up to the contractor he told me that tub doesn't require mortar it has feet it sits on. Says he's never used mortar on that tub before. I called American Standard and gave them the model number and they pointed out that even though it has feet it needs to be supported under the main part of the tub by mortar. Excerpt below from emailed instructions:
"For Models: 2425L / V.168C-RHO and 2425L / V.268C-LHO
This bath must be supported along its entire bottom. Use mortar as a bedding material (do not use sand or foam). Apply enough mortar to support the complete bottom of the bath. After the mortar has been poured, and before it sets, position bath within recess until the rim is leveled against the leveling stringers."

I have access to ceiling under the tub is there anything I can do? Or do I have to beg/plead with my contractor to rip out my tub and tile and fix it?

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Old 10-14-2014, 02:12 PM   #2
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Yes .the tub bed should have had a mortar bed .Feet or not.The feet are an aid in leveling the tub but not there to support all of the weght moving around in it.Go to AS website.Download the installation instructions and show them to the contractor.
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Old 10-14-2014, 07:23 PM   #3
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always use mortar as base for tub install...
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