03-13-2009, 10:51 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 5,307
Thanks: 0
Thanked 148 Times in 143 Posts
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If the wood is "punky" around the tub then rest assured its waterlogged underneath. best take out the tub and re-do the whole sub floor. I'm sorry it comes to this. Water travels in the most obscure places and causes problems. concrete board will not solve the problem. it'll makes the floor hard again but the sub floor is still springy.
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