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Question DetailsAsked on 6/20/2016

Any idea how to hook a garbage disposal up to a Utility Sink with a 1.5" drain ???

Do I need to cut the hole bigger?
How can I make this happen?
I added the info below of what I'm getting and I need to add a garbage disposal to it.

http://www.homedepot.com/p/BigTub-Utilatub-Combo-40-in-x-24-in-Polypropylene-Single-Floor-Mount-with-Pull-Out-Faucet-P-Trap-
and-Supply-Lines-in-White-28CF/203155730?cm_mmc=SEM|THD|google|D29B+Bath+Vanities&mid=sP8bvbOQW|dc_mtid_8903syd25186_pcrid_4
7795346217_pkw__pmt__product_203155730_slid_&gclid=CLPf1bCpt80CFQcKaQodVKgCoQ

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3 Answers

0
Votes

There are hard-to-find mounting flange adapters for oddball sinks at larger plumbing supply shops.


However, in your case, the spec sheet on your tub says it has a molded-in drain, so the normal mounting method for a garbage disposal would not work - it clamps into the hole for the drain and forms the drain itself - go to installation instructions for a garbage disposal like Insinkerator to see how it connects - one part slips in from the inside of the sink and has a matching threaded connection underneath to tighten the drain to the sink, then has a hanger flange arrangement integral to that to "hang" the garbage disposal to - it does NOT just hang off the bottom of the sink and would likely break off that sink's drain fitting in no time.


In your case, you would have to juryrig some sort of mounting to a pipe flange piece I guess, or use a hole saw to cut out the bottom o fthe tub to fit a standard garbage disposal drain/mounting flange - though I would be worried that the connection would be in thinner plastic than the existing outlet has and split easily. And the garbage disposal would have to be mounted somehow so it does not hang from the tub - because I would not expect a laundry tub like that to handle the weight of a garbage disposal well either. I strongly suspect if you contacted the manufacturer they would say that tub is not rated for a garbage disposal - though they may make a model that is.


However - this is a plastic tub - and even if legal for kitchen sink (which I have doubts of - usually have to be metal or a "hard-surface" material like stone or fake stone or concrete, or a smooth scratch-resistant surface like sink acrylic - not soft plastic like this one), I also would never mount a garbage disposal to a plastic sink like this - too flexible, and I would expect the movement of the garbage disposal to result in cracking of the sink in pretty quick order - though I suppose it would be possible to make a cutout marine plywood mounting template (fastened to the cabients) to go under the tub for the disposal to hang from.


Question - if you want a pot and pan sink (hence this large size) then why not just get that (in metal, albeit a couple hundred $ more) instead of using a laundry sink ? Some are available in one-compartment or three-compartment (regular 2 sided sink size plus pot-and-pan larger side) at some storesand on the web, but usually from restaurant supply and commercial plumbing supply places. Will be a lot tougher, will not nick and slice from knives and such - regular kitchen use of a plastic sink like this I would expect to see a LOT of slices and scratches in short order, which will promote grundging up of the sink inner surface in no time - and this type of plastic will be a CONSTANT cleaning problem - will lijkely build grundge faster than bathtub drain area.

Answered 2 years ago by LCD

0
Votes

One thing I did not say - with the cross-bars in the drain, a 1-1/2" drain opening (as you have now) is awfully small for use with a garbage disposal - so adapting the 1-1/2" drain to a disposal is going to make for a LOT of clogging of the drain with food particles - sort of like trying to use the non-disposal side of a sink to put food materialsl down - that is why disposal openings are about 3-1/4" (ID) - 3-1/2" sink rough opening.

Answered 2 years ago by LCD




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