This pos company that made that stuff will not have any repair cartridges available in a few years. I am telling you, get a major mfr's fixture...
The price you pay for Cheap plumbing will be borne for decades to come. No repair parts, no warranty, no customer service, NO Extensions like...
Most all newer faucets mfr's now expect there to be a wall behind the faucet and account for that angle issue. Guaranteed the Grohe Ladylux pro...
The functional part will work but the reason to not use pressure fittings is that gunk will hang up on the pipe sections and cause smell and can...
Not enough info about your piping array. Usually (before Navien's mini tank and due to poor temperature control, or if using recirculation) we...
If the joint is lead (under the white crap), then the lead can be rammed further in with proper lead caulking tools or a blunt device of your...
Rodents love to chew through plastic. They prefer Jim caps buried behind floors or in walls most of all. I have seen it many times after smoke...
A lot of faucets have poor flow appearance.
Call Navien tech service
type of shower valve (pressure balancing?) static water pressure, piping material, strapping spacing, nature of contact of pipes with building...
There is a check valve built in to the NPE240 series, inside the unit near the bottom. I have solved the exact problem you are experiencing...
Condensation is depositing normally (think glass of iced liquid). Failure of the vacuum within the double glazed panel is not uncommon....
not enough information provided.
A good sewer camera down into the drain will allow evaluation. The best camera will be a self-righting type that keeps up and down properly viewed.
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