Non-Potable PVC Bushing?

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Rmgolob

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Related to my thread with regards to installing a CSV, I want to put this bushing directly into the CSV outlet.
(To create a plastic barrier between the stainless valve and the copper pipe and fittings)
Why in the world would this bushing be listed as for Non-Potable water?

Thanks
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Valveman

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Because it cost the manufacturer many thousands of dollars a year to have each part tested and listed as NSF61G. PVC is PVC and not going to hurt you. Having to comply with NSF61G is just a political thing to make us pay 4-5 times more for the same products we have been using for generation. They made the laws where manufacturers are guilty until they pay enough money to prove they are innocent. Stupid laws like this are costing the average home owner for no good reason.
 

Sylvan

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"Why in the world would this bushing be listed as for Non-Potable water?"

Because PVC is known carcinogenic

Unfortunately, most PVC is not rated for use for drinking water, not due to a high risk of toxicity, but due to the fact that it can degrade with high temperatures, UV light exposure, and extremely high pressures. Any degradation can damage the water supply and make it unsafe for drinking water


https://www.ecowatch.com/why-you-should-avoid-pvc-products-1881927242.html


https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3327051/
 

Rmgolob

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Because it cost the manufacturer many thousands of dollars a year to have each part tested and listed as NSF61G. PVC is PVC and not going to hurt you. Having to comply with NSF61G is just a political thing to make us pay 4-5 times more for the same products we have been using for generation. They made the laws where manufacturers are guilty until they pay enough money to prove they are innocent. Stupid laws like this are costing the average home owner for no good reason.
Thanks. so I can put that in the outlet of my CSV and then a 3/4 elbow in the bushing?
 

Reach4

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https://www.homedepot.com/p/Charlot...-FPT-Reducer-Bushing-PVC021080800HD/203811581 says conforms to NSF 61 and 14. And in fact, it says
  • White fittings that are used in potable water applications only

https://www.supplyhouse.com/Spears-...le-80-Flush-Style-Reducer-Bushing-MIPT-x-FIPT is CPVC. The product overview says NSF approved.

https://www.supplyhouse.com/Spears-439-131-1-x-3-4-PVC-SCH-40-M-x-F-Bushing
https://www.cooneybrothers.com/2394544/p/n/spears-439-131 says that Spears 439-131 is NSF approved.

There is some question/ambiguity about UPC and IPC codes allowing PVC indoors for pressurized potable water. Should be allowed for well-stuff IMO, but it is not bright-line clear.

(Brass and stainless) and (brass and copper) are normally thought to not have galvanic corrosion problems.
 

Valveman

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PVC is still PVC no matter if the company paid to have it "certified" or not. There are lots of NSF ratings as well. NSF 372 just means no lead and NSF61 is different from NSF61G. You should be very afraid of all pipe and fittings unless you paid 4 times the cost to have the NSF61G sticker on it. Lol!
 

wwhitney

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PVC is still PVC.
That may be true in practice, but is not a priori true.

A plastic material is a complex mix of different ingredients, and we often refer to them just by the primary polymer (PVC in this case). There are lots of other additives to control various material properties. It's certainly possible that some of those additives may leach out into water and may be harmful.

So having a certification that a particular plastic part doesn't use any of those additives makes sense to me.

Cheers, Wayne
 
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