Recessed ceiling canister lights pose special problems for a homeowner bent on making a home more energy-efficient. The older types are extremely leaky and are difficult to make airtight. Because of regulations concerning fire safety, the best you can do is to build an airtight box of flame-re...
the faucet probably has ceramic disk valves, which are similar to cartridges. These are removable, although you might have to remove some screws to get one out, and they are the least likely valves to leak. Not all ceramic disk faucets have two handles; and not two-...
If you can rule out the aerator as a cause of the whistling, disassemble the faucet and look for loose or worn rubber components. If the faucet has two handles, and you only hear the hot or cold tap squealing, that's where to focus your efforts. A single-handle faucet may stop whist...