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A comment on Undercover Cops Hired 118 Handymen, Then Arrested Them for Not Having Licenses. Parent comment

Re:Undercover Cops Hired 118 Handymen, Then Arrested Them fo... by Psyladine on Thursday February 06, 2020 @08:51AM (#22255903)
I'm not following; you want separate plumbing lines entirely to feed sinks, outlets and toilets? I can't picture a single residential facility that doesn't have a shared feed, nevermind a corporate complex designed for efficiency.

>no vacuum breakers no RPZ's (reduced pressure zone devices) nothing to protect the water supply from siphoning Cyanide back into it

Not even the shutoff valve? There should be constant pressure behind the hose beyond it.

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Re:Undercover Cops Hired 118 Handymen, Then Arrested Them fo... by dredmorbius on Thursday February 06, 2020 @04:28PM (#22260532)
You need an anti-siphon design, of some sort.

Direct hose connections can result in back-contamination. A drop-fill won't do that. There are anti-siphon designs, they are less assured as they may still fail.

https://www.thespruce.com/anti-siphon-faucet-1824942

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