Toilet supply lines snapping off at ballcock..

Master Plumber Mark

Sensitivity trainer and plumber of mens souls
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We have been using some common brands of flexible toilet supplies from our local plumbing
supply house over the past 30 years, probably hundreds of them.... Mostly brass craft and other name brands over the
years..... All of them were standard braided flex supplies with plastic nuts to connect to the ballcocks..

Sometime back in February in our mother-in-laws quarters my wife heard water roaring
and she found that the plastic nut that holds the braided supply line onto the toilet snapped off
and was flooding the bathroom and getting out into the kitchen and carpet.... it only ran for a
few minutes but we were lucky to catch it .... it did about 3k in damage .... This supply line has
been working since about 2005 or so..... I checked out the other 2 toilets in our home and they
were the same brand so I immediately changed them out too.

Then I get a call from a real estate company with an issue down south of me and I show up to
find that the toilet supply line on the second floor of this home snapped off in the middle of the night
and flooded the hell out of the home.... Everyone slept through the flood and woke up to about an inch of
water down on the first floor and the kitchen ceiling falling onto the floor too..... this was just a white rubber
hose kind of supply line with the same kind of plastic nut fastened to the ballcock... These people had to move out of the home due to the damage and its on the insurance company to repair all the damages..

Now last night I get a call from someone that we repaired their toilet for about 7 years ago on the second floor
of a home and theirs cracked and blew loose too....... The damage was minimal because they caught it
only after a minute or tow.. Of course after that long, I am not liable for anything past a year, but I think that
this is gonna get ugly over time.....as we have installed literally hundreds of these supply lines since 2000

I have had 3 of these floods in less than 60 days and that worries me.... they are either under stress from the water pressure or the chlorine in the water is affecting them , or they were bent out of shape and the stress was all somehow pushing on that nut

I told the real estate company I work for on occasion , which manages about 160 properties, that it might be prudent to have all their properties checked out and have all the supply lines to toilets changed asap, although its gonna cost them probably 200-250 bucks per house....


I know that if I had rentals I would be running out to them tomorrow and upgrading those supply lines
Its called preventive maintaince or a "stich in time saves 9"

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Mark, Just wondering what you know of this brand the metal nut we all know is safer but ive used tons of platic nut supplys as well. a lot of plumbers wont use supplys with plastic nuts some wont use ball cocks with plastic shanks either.
21 years on a supply line a bit long I think same thing with w/m hoses but i dont preach to customers they almost al;l have bad PRVs too I tell them and dont push it
 
Mark, Just wondering what you know of this brand the metal nut we all know is safer but ive used tons of platic nut supplys as well. a lot of plumbers wont use supplys with plastic nuts some wont use ball cocks with plastic shanks either.
21 years on a supply line a bit long I think same thing with w/m hoses
 
Mark, Just wondering what you know of this brand the metal nut we all know is safer but ive used tons of platic nut supplys as well. a lot of plumbers wont use supplys with plastic nuts some wont use ball cocks with plastic shanks either.
21 years on a supply line a bit long I think same thing with w/m hoses


I use fluidmaster pro ballcocks only and have never had a problem with any of them....
they all have had plastic shanks for at least 30 years now...

They have beefed up the plastic nuts on the toilet supply lines a while back and I noticed it in
passing but never knew why it was done.... I got to think that the heavier duty nut has solved this issue
but their are a lot of older lines just waiting to snap loose out there someday

I figure I got about 50+ supply lines laying around that I will need to
burn through then I am gonna go to a 16 inch handicapped supply line with brass nuts all my installs because with the longer
length their will be less chance of any stress at that fitting...
 
I won a lawsuit on September 26, 2011, against a co-op and the use of a plastic nut on a tank supply
The plastic nut broke and caused a flood.

I quoted the NYC PLBG about potable water supply, stating "plastic is not allowed."

Although this was for a toilet connection, it was still attached to the water supply, and the judge allowed it to be used

What also was a violation was the use of a 200 A Fluidmaster (no vacuum breaker)

Another suit I won was a toilet seat in a restaurant when the lady fell and fractured her hip.

I noted the toilet seat was not open as required for commercial or public use .
 
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