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Sep 6, 2021 · I'm installing a new vanity and found green oxidation at the elbow joints of the copper pipes exiting the wall. As you can see in the pictures below, there is much more oxidation on the hot water pipe (first two pics) than the cold water pipe (third pic). I recently purchased the home and don't know the history of this plumbing.
Nov 29, 2020 · 1. You need to heat the copper to point where it is hot enough to melt the solder. I've had problems using propane torches for this purpose, so bought a Mapp torch. Makes all the difference. Another thing that will impede the heating of the copper pipe is any kind of moisture in the pipe.
Jun 9, 2016 · You have 3 or more options. #1 get a shark bite to go from galvanized to copper. #2 You need to go to a plumbing store and get a galvanized nipple and then extend your copper to the point the pipe screws into a coupling or other fitting. #3 If you don't want to extend your copper get an exact measurement and have a new piece of pipe cut and threaded. #1 is the easiest way and may be the most ...
You should only use about 1/2" to 3/4" of solder to make a joint on that size; don't add more or you could just fill the pipe. Keep a dry rag to knock off excess solder and a wet rag to cool and clean the joint. Flux causes oxidation (turns green). Don't worry about burning off flux: it will take unless it's too hot.
If you choose to replace the pipe with flexible copper, you should shut off the gas and take the pipe with you to the store. With the pipe in hand, it should be no problem finding replacement pipe. You might also find that the end(s) of your copper pipe are flared. If they are, you'll also need to flare the ends of the new pipe.
Aug 7, 2012 · You can use silicon to secure the escutcheon to the floor. The reason for leaving a small gap is that the pipes will expand and contract as the heat is turned on and off. The gap will prevent any friction between the two items. If they do rub, you will hear the rubbing every time the pipe changes temperature. Share.
Aug 24, 2021 · 1 Answer. Sorted by: It is best practice to isolate copper from dissimilar metals to prevent galvanic corrosion. This includes hangers and supports. In my area, when copper pipes come in contact with a dissimilar metal we wrap the copper pipe with Polyken 930-35 tape. This is a product designed to provide long term corrosion prevention.
Dec 16, 2022 · The copper pipe is part of a 40 year old domestic central heating system (to supply radiators). It seems to be a 'known issue' that copper pipe buried in concrete or screed will (over time) corrode and eventually fail. I want to replace like-for-like, i.e. new, straight 15mm copper tube but I want to protect the new pipe from failure.
Basically they consist of a nut with a cone-shaped plastic washer, which when compressed by the nut squeezes against the (copper) pipe to create a seal. Usually these are only on the sink side of things and the wall side has glued-on plastic but you can use the compression fittings on both ends. Here is a 1-1/2" Plastic p-trap.
May 2, 2020 · 1. Copper is corrosion resistant to most materials found around a home ; EXCEPT ammonia and urine ( urea) . Some household cleaners contain ammonia. When moist they cause corrosion of copper. Ammonia and related materials can cause stress corrosion cracking of brasses.That is why brass flex tubes have not been used for decades to connect gas ...
