05-04-2009, 09:00 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 5,307
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Thanked 148 Times in 143 Posts
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I'm thinking that the crack may have occured at a hub - you know the joints in cast are hub and spigot. if the cast isn't supported from underneath on sand it could crack from the shear weight of it. if the plumber made a splice with pvc and furnco couplings there wouldn't be any appreciable weight there.
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