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Old 08-02-2014, 08:53 PM   #1
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Question New Toilet Installation Issue

I recently replaced my RV’s toilet with a new SeaLand 510H. It works well, but the toilet base seems to move around ever so slightly when someone is using (sitting on) it. It does not move a lot, but it is not as solid as the older/shorter toilet. I removed and re-installed the toilet to see if I mounted it wrong, but everything seems to be ok. I’m afraid to over-tighten any of the base mounting nuts for fear of cracking something. The installation instructions say to snug them only. Aside from losing some weight, anyone have any constructive suggestions?


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Old 08-03-2014, 05:47 AM   #2
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Shim any gaps with a level toilet and caulk visible seam for aesthetics.

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Old 08-03-2014, 08:33 AM   #3
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Originally Posted by RV Wizard View Post
Shim any gaps with a level toilet and caulk visible seam for aesthetics.
What he said
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Old 08-03-2014, 06:50 PM   #4
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You need to take the toilet back off and check the flange. It is bolted to the floor, and should be tight. Then the 2 toilet bolts slide into the slot in the flange and is used to hold the toilet and seal tight to the flange.

What is loose, the flange to the floor or the toilet to the flange?
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Old 08-03-2014, 11:50 PM   #5
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Scots got it right when he says the flange must be tight. Your sealand uses four bolts I presume? If so the only play you might have is in the flange. If the floor under the flange has dry rot than nothing you do will stop the play untell the floor is fixed. the old toilet may have had a larger base bridging the roted floor. Try tightening the screws holding the flange to the floor, if they spin, time to repair floor.
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