I'm trying to help out an elderly friend with a plumbing issue. He doesn't know anything about plumbing, and I don't consider myself very knowledgeable in the field.
His sink currently has an InSinkErator Badger 5 garbage disposal that requires replacement. Will the ISE Evolution Compact garbage disposal fit under this sink without modifying the plumbing?
The InSinkErator website claims:
[The Evolution Compact] has the same rough-in plumbing dimensions as Badger models so it can be easily interchanged with any Badger disposal without altering the plumbing connections.
Looking at the diagrams in the manuals, he and I both wonder if this is true.
As you can see, the Badger 5 has a 5" horizontal distance between the two vertical centerlines:
Source: InSinkErator Badger 5 manual
Whereas the Evolution Compact has a 5.75" horizontal distance:
Source: InSinkErator Evolution Compact manual
There is also the 1.75" difference in diameter between the 2 units to contend with, but I can't tell if that will also be an issue.
Here are 2 photos of the plumbing pipe layout:
Will the InSinkErator Evolution Compact garbage disposal fit under this sink without modifying the plumbing?
If not, what would be required to make it fit?
Best Answer
Can't be guaranteed but it probably will fit using your existing plumbing fittings. You have tons of space and plenty of vertical drop to the wall drain. Everything you have there is compression/slip joints that have some room to slip in and out and rotate.
The new unit is 3/4" wider so you'll rotate it and the trap to a position where they line up, then you will rotate the T coupling that joins the other sink so that it is pointing directly at the other sink and you'll couple those together. Should be enough play in all components to make it all go smoothly.
You never know though ... maybe some of those couplings have been cracked or broken or glued or otherwise abused and not reusable. You need to be prepared to run out to the store for replacement bits if you run into problems.
Don't forget the dishwasher drain hose needs to make a loop up high between the sink and the wall before coming back down to join the new disposal.