Dishwasher and disposer rules

[bdoles2]

It's great that people are calling it out. But do you know why your calling it out, or is it just because the code book says to.

Just wonderin'

[sparksnmore]

We're supposed to use air gaps but nobody does it.

[Jeffrey R. Pope]

Originally Posted by bdoles2

It's great that people are calling it out. But do you know why your calling it out, or is it just because the code book says to.

Just wonderin'

What, exactly, are you referring to?

[bdoles2]

The disposal connection.

[Jeffrey R. Pope]

Sorry Brian. I thought yours was post #1 in this thread. I missed the whole first page.

It's been a long day. . .

[bdoles2]

Originally Posted by jpope

Sorry Brian. I thought yours was post #1 in this thread. I missed the whole first page.

It's been a long day. . .

ha, haven't done that in awhile.

[nbhi]

Originally Posted by wdecker

No doubt. I find it all the time as well.

But the fact is that both the Chicago and the Illinois plumbing code prohibits it.

I call it out. Easy to fix.

I also call out plastic flex drain pipes. They are also not allowed.

Will
What issues are there with using the plastic flex piping?

[William J. Decker]

Originally Posted by nbhi

Will
What issues are there with using the plastic flex piping?

Not allowed in state code.

Sure, I know its a code issue, but knowing the code is important, isn't it. If not, why do we study the NEC and get IRC certified and all.

If people are buying a house that has code violations, they are buying that liability.

In Illinois, state law requires that we call things out based upon "current construction standards", which means national and state codes.

My second question, on this thread, is does anyone know why the code says this. There usually is a reason.

Besides, it's a good indicator is the work was done professionally or not.

[relliott]

It traps grease and debris Will.

[relliott]

Here is the wordage.

TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 890 ILLINOIS PLUMBING CODE
SECTION 890.410 FIXTURE TRAPS/CONTINUOUS WASTE

Section 890.410 Fixture Traps/Continuous Waste
Type of Traps. Traps shall have a uniform and smooth interior, and shall have no partitions or movable parts. The trap seal shall be non-adjustable. (See Appendix D: Illustration C.)

[rmaday]

Originally Posted by wdecker

My second question, on this thread, is does anyone know why the code says this.

Knowing that is probably more important than knowing the actual code.

??Maybe too many people forgot to remove the plug before connecting the DW drain??? But not me, nope never did that!

Local Code takes precedence over manufacturers instructions, yes?

And best practices trumps all for HIs!

[relliott]

Rich in regard to the dishwashers , that would be for the reason I gave earlier in that there is a possibility of cross contamination in that the disposal contains bacteria.
If the diswasher hose is not a reverse trap the water can go back into the dishes.

[rmaday]

Originally Posted by relliott

Rich in regard to the dishwashers , that would be for the reason I gave earlier in that there is a possibility of cross contamination in that the disposal contains bacteria.
If the diswasher hose is not a reverse trap the water can go back into the dishes.

Could happen with conection to drain too.
Air-gap or high loop solves that.

I just looked at mine 10yr old home - DW drain to waste drain above trap.
If that clogs, the waste water is going into the dishwasher (if there's no air gap/high loop)

[relliott]

yep you are right

[rmaday]

Originally Posted by relliott

yep you are right

Can you let my wife know?
According to her I haven't been right for 10 years.