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7

There more restricted the airflow is, the more noise there will be. All contributing factors to noise: Diameter of duct (larger is better) Overall length (shorter is better) Number of turns/bends (fewer is better) Radius of turns (larger is better) Size reducers used (no reducers is better) Type of duct (smooth, rigid is better than flexible) Type of ...


3

If you go to apply for a permit for work you already did, you might get one of any number of reactions, ranging from, "just pay us our fee and go away" to "an inspector will be out next Thursday to make sure everything visible looks fine (and just pay us our fee)" to "you need to rip out all the finish materials so our inspector can look at the plumbing and ...


1

Before using any adhesive to secure a shower curtain rod, I think you'd have more success keeping it in place with an expanding or screw- type rod. It's the same idea as the chin-up bars that mount in a doorway. The rubber stops at each end of the rod prevent mars and wall damage. I've seen them turned so tight the tile cracked! But if you still need some ...


1

If you have a specific tile in mind, and you have seen this in a store, simply try the slipperyness out by making it wet and rubbing on it. There should be nothing wrong with using a pool tile for a bathroom (except maybe slipperyness), since a bathroom is made waterproof underneath the tiles. If the membrane is intact, you can use any tile meant for wet ...


1

Changing the pitch would do little. It sounds like it may not be vented correctly.


1

You also need to be sure your water pressure is adequate (as in high psi). A wall mounted toilet doesn't use a reservoir, but relies on high water pressure for complete flushes.


1

Reach up and tap the opaque lens cover. If it seems like it's not integrated into the rest of the housing, then you should be able to move it out of the way. If it looks like it's one piece, then try lightly tugging on the whole thing, see if there's a spring loaded catch or retaining spring.


1

EDIT: I let the photo lull me into a sense that the OP had more access to the joists than what is actually accessible. I did indicate what I think the answer is, in the final sentence of my final answer as an option... You obviously can't leave plywood cantilevered out in space like that, and there's no way to butt one piece of plywood up against another ...


1

To go along with gregmac's very good answer I would offer the follow tips. Make sure your rigid duct is ultra secure, especially near the fan. If it wiggles when you grab it then it will make sounds with the fan going. I strap these things in really tight. I rockwool the first 3-4 feet really tight. I smash it in around the duct. This absorbs much of ...



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