Recent comments in /f/DIY

lusciouslucius t1_j73jkyu wrote

The big thing with sweat fittings are the pinhole leaks. They can occur from excessive flux, or from the fact that sweat fittings are just copper pipe stretched into a 90 or 45 or whatever. That means the material is not only weaker but exposed to more wear and tear from the water, as it has to more actively direct it. In cases with high water velocity, that means that the backside of 90s can be eaten away much quicker than the rest of the pipe. It's most common on the fitting immediately after pump.

2

Tom_Traill t1_j73jcgr wrote

Another way of looking at it is this:

I know more than 3 people. Probably 100 people, give or take.

Of the 100 people I know, 3 of them have had expensive plumbing problems.

Two were from using Sharkbite connectors.

One had PVC water lines in their home, installed by the builder.

Better?

2

DirtyPolecat t1_j73iq7i wrote

Do you not make any personal decisions in life without a team of scientists to hand you a study on it? Are you incapable of using your existing knowledge on materials science and physics to make an educated guess on something? Do you really need somebody to tell you that metal is stronger and lasts longer than rubber?

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jeffersonairmattress t1_j73in5g wrote

Sharkbites actually work better with PEX than with copper. Especially near a shower or other closed areas prone to getting condensation on the pipe. The little stainless teeth bite nicely into PEX and the OD of PEX stays smooth against the O ring and can't abrade it. Moist air near a sharkbite on copper puts two dissililar metals in a weak electrolyte- the stainless and copper battery causing copper oxide buildup that can eventually ruin the O ring seal against the pipe or erode the copper until there is nothing solid to bite and the assembly leaks.

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lusciouslucius t1_j73idcb wrote

Sharkbites are garbage, but IMO pro press is legit. They hold well, and though I have seen them leak through improper installation, that is always a risk. I haven't seen enough old pro press fittings to really see how well the joints hold up over the decades, but I have seen enough failures in sweat fittings to appreciate the larger radius and thicker material of the pro press fittings. You can argue that failures in sweat fittings are due to improper hydraulic design, but excessive water velocity is almost an industry standard, as the math behind water sizing is very fudgy, if the installer even bothered in the first place. Also, pro press installations have considerably better water pressure. I wouldn't install pro press in my house, but only because I know how to sweat, and pro press fittings are expensive.

That being said, the best domestic water system is expansion pex, which is cheaper and easier than copper anyway, so if you have the opportunity, just go with that.

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Great_Bodini t1_j73hd6v wrote

Copper isn’t a company you can sue. Manufacturers have QA areas that sample to make sure what they are putting out meets standard. Copper fails all the time, very likely due to the sheer amount of it in use, but unless you track it back to one manufacturing facility, you can’t sue anybody for it failing.

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Ponk_Bonk t1_j73h3k4 wrote

You wanna round up the townspeople and get a plumber purge going? Take it all the way to sharkbite HQ? Find those dastardly deadbeat deceiving defrauding dung flushers and give them all the pent up rage you're still holding on to or just wanna let it fester inside you until it turns into prostate cancer?

1

Great_Bodini t1_j73h0qg wrote

I’m with the dude, if “everyone knows it” there should be numbers to back it up. Everyone “knew” that asbestos was an amazing fire retardant material, and that lead worked fantastic in gasoline and paint.

15

JonJackjon t1_j73g401 wrote

If you are referring to a scientific study of the failure rate of soldered copper vs sharkbite vs ________. I am not aware of any.

However there is at least one lawsuit against sharkbite's which suggests at least some folks have had issues with them. I know of no current or past lawsuits against copper. Remember to be problematic a device need not be scientifically compared to a "standard".

4