On Sunday, July 30, 2017 at 9:44:07 PM UTC-4, Iggy wrote:
replying to Ed Pawlowski, Iggy wrote:
Well, I tested and went to full glue-up PVC with elbows off the sinks to the
back wall and ran the p-trap parallel instead of perpendicular to the wall.
You now, finally, see Ikea and a few p-trap manufacturers doing this in very
crappy versions. But, at least, 7/8's of the cabinet remains wide open and
I've made removable drawer units for a number of kitchen and bath sink
cabinets...the cabinet is emptied in seconds by just lifting out 1 or 2 drawer
units.

And, guess what I put on each end of the assembly, yes right on the drain's
shank and right up to the wall's nipple or elbow. Unions! Yep unions, can't be
knocked loose nor off and only need to be hand snug to stay bone dry. But
still, every plumber I've run across outright rejects and completely ignores
them. Clients have and can easily drop the assembly to retrieve something and
pop it back together flawlessly in just a minute...that's when they call to
have their other sinks re-done correctly.

A standard P trap also has two nuts that can be just as easily loosened
as two union nuts. Also, there are P traps that have drain plugs in the
bottom, so if removal of objects is an issue, they are available.
I'm not seeing the big advantage for glued up P traps and unions.




If, a plumber comes to snake the drain deeper in the system, they only need to
bring their snake.

Yes, I'm sure that's an advantage. The plumber can unload his truck of
all his normal tools and leave them in the driveway at home. Or I guess
he could just take the snake and hop in the family car.



I even had a few clients fire plumbers on the spot who
whipped out power saws to hack up the assembly and wouldn't relent nor even
try to listen or figure out what they were looking at. 2 times I had plumbers
calling me gushing with how foolproof and simple the assembly was to work with
and that they'd be trying it out.


Given the low cost of PVC pipe and fittings and the high cost of labor,
those plumbers may have been right and saved the customer money.
Why examine and figure out 6 different ways of saving $15 worth of stuff,
ways that probably add more labor, when the clock is running at $100 an hour?