I replaced a garbage disposal that was connected to an air gap for the dishwasher. Both the air gap and the garbage diposal are on the right side of the sink, with the garbage disposal connection for the 7/8 ID hose pointing directly to the left toward the drain pipes. I'm trying to not move the drain lines. The 7/8" hose is so stiff that it seems impossible to make the "hairpin" turn without collapsing or kinking the hose. I tried cutting the hose down to fit, but it is so stiff that it will not stay in place and actually pulls the air gap out! I'm stumped on what to do. I have read some postings recommending using 3/4" copper 90 degree connectors. Is that my only option? Any other ideas? I can't believe that there isn't a more flexible hose for this application. I would appreciate any ideas.

clear vinyl hose is more flexible.
if you use copper, use long turn 90's

Thanks Packy. I really appreciate the reply. Do you know if clear vinyl hose is rated for the temperature requirements and the chemicals coming from the dishwasher like the black hose?



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the only problem with vinyl is... because it is clear you will see the awful looking gunk that lines the inside of the hose over the years. it is present in the black hose you just don't see it. otherwise the life expectency is the same..

no, it is NOT rated above 110 degrees

it WILL become brittle and crack if 'overheated'


this includes the 'braided stainless faucet connectors' which, as per manufacturer's instructions, should actually be replaced every 5 years

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

Thanks to both of you for the input.
Bernabeu, what would you recommend to my dilemma?



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can't really help w/o a picture

7/8 hose is most likely 1/2 nominal (5/8 od) copper

you can try to bend some soft temper - heat a scrap piece dull red and 'quench' it in water

==============================================

"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

i had a whole roll (50 feet) given to me and so i used it for dishwashed drain hose. i had dozens of installations and NEVER had a problem. i believe bernbeau is talking about a pressure situation. a drain hose has no pressure involved. vinyl is perfectly safe and will not rupture or become brittle. I HAVE USED IT, HE HASN'T..

It's not ½" nominal(5/8".

Ok, I'm going to admit that my very handy wife figured out the answer. I did a fitting of the hose, cutting down a little at a time, until I got it to a point where it collapsed only at one point. Then we filled a sink full of hot water and soaked the slightly cut down piece of the 7/8" ID hose until it was very pliable. I took it while still warm and put it right in. I had to "massage" it a bit in one place that wanted to kink and collapse, but in the end, it stayed open. All tests are complete. Washer draining perfectly. No leaks, no runs, no errors! Thanks to everyone on this thread. I'll keep an eye on other threads and pay it forward.



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Quote

I HAVE USED IT, HE HASN'T..

...and never, ever, will use vinyl hose as plumbing ANYTHING


now, HDPE is another story




however, packy is 99% correct (most of the time)



==============================================

"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

geesh, it is an open ended drain. he could use a cardboard tube from christmas wrap and it will work.
if i hadn't done it i would not be so certain of the results. (vinyl hose not cardboard tube)..

IMO: I prefer the cardboard over the vinyl.

Just a personal prejudice.



ps. from our sponsor: PlumbingSupply.com® offers excellent quality reinforced dishwasher hose that can handle routine high temperatures, the chemicals used in dishwasher soaps, and general abuse.



==============================================

"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638



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Where you have a kink, place a hose clamp at that spot, tighten it up and it will keep the hose from collasping. Works for me.



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