Old home with 2''x6'' (5 1/2'') joist floor. 2nd floor. Could not pass inspection, City of Hillsboro, OR for following issues.
1. Toilet drain cannot get drop within 5 1/2'' joist.
2. drilled a bigger Hole for 2'' drain pipe for shower in 2''x6'' joist. Cannot get drop.

Cannot drop 1st floor ceiling.

Can you please suggest solution?

[photos.app.goo.gl]

you need a 3 inch street vent 90 for the toilet.
it will allow you to raise the elbow below the toilet so the top of the pipe will be even with the top of the joist.
that should give you enough slope.
they make these in ABS as well.


the bad news is that a 2 inch trap will not fit under the shower given 2 x 6 joists for a depth.
you will need to raise the last portion of the drain up a couple of inches and then separately vent the shower trap. this will mean that the shower will have to raised about 2 inches.

Has an inspector seen the holes in the floor joists?

Yes Inspector did not like the holes. I had put 2 1/2'' hole to fit 2'' pipe. I could have done a better job with 2 1/4''.

Actually a 2 " pipe is 2 3/8" in diameter

Pipe slope is the least of your worries, you have seriously compromised joists that were already marginal for supporting a second floor. Looks like that space was built originally as attic space not living space.

General rules are that holes must not be closer than 2" to the edge of the joist and must not be more than 1/3 of the joist depth, so the biggest hole you should be drilling in those joists is 1.5".

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Not a plumber by trade but a fierce DIYer

I agree with LI Guy. You will probably need to remove the pipes and sister on some boards on both sides of those joists. Glued and bolted.

If you cannot build soffits downstairs, can you raise the whole floor of the bathroom up a bit to make room for the pipes?

A 4x3 spigot closet bend will be a MUCH MORE appropriate fitting under the toilet.

except 2" pipe would NOT fit a 2 1/4" hole.

OP,

Until you PROPERLY repair the seriously compromised joists your house is NOT fit for human occupation.

It is actually in peril of a 'second floor' collapse.

The good news: the amount of money you saved by DIY

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

geesh bernabeu, give the guy a break.
you really know how to kick someone when they are down.
he did try to do the right thing.
he called for inspections and then came to us for help.
BTW, I have seen jobs done where structural integrity was compromised by hack contractors not by DIYers.

as Yoda once said:


Do

or do not

there is no try.

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

:>

On a more serious note:

If the OP had 'pulled' a permit there would/should have been a 'plan review' BEFORE the permit was issued.

(theoretically)

The ill conceived 'plan' would have been nipped in the bud BEFORE the destruction of the structure.

(theoretically)

Now the OP needs to remove it all, repair the joists, and start from scratch.



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

no such thing as a 'plan review' around these parts.
in fact for about a year or so, we file permits online. we don't even get to see the inspector until we call for inspection.

That's because of the law in your wacky state that says you have to be a pro plumber to do any plumbing...a pro shouldn't need a plan review, that's only for the amateur homeowners.

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Not a plumber by trade but a fierce DIYer

The "plan review" may not have seen the problem before installation began.

Same thing here with online permits (no review), just $100 and schedule for a rough then final inspection.

And I’m just a homeowner. So it can definitely happen. Although if a homeowner is comfortable doing permits and plumbing, one would expect them to understand basic construction concepts.

Down here in south FL we also have gone online with permit processing.

No plan review for DWV if they requests anything it would be just ISOs so not going to show how the plumbing will interfere with other disciplines like electrical or structural.

You can't build a chase underneath to house the pipes?

? no plan review prior to modifying joists ?

? one is allowed to modify structure w/o prior review and permit ?

plumbing lay-out with pitch may be approved w/o review BUT said plumbing must be installed WITH said pitch



else


perhaps we truly have become third world

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

If you are going to just reconfigure some existing stuff no plan is needed for permit submitted.

Now I don't know how permits are run in other cities but down here in south Florida many cities and counties have moved to what they called "uniform" permitting. A simplified single form used for many things.

In most cases to reconfigure some DWV or reroute some supply piping you simply select the work you are performing from a preset list. There may be an option for "NEW DRAIN SYSTEM" or "REPLACE/REPAIR EXISTING DRAIN SYSTEM" with some written description. Then the permit submit process allow you the customer or contractor to check off the "department" it is involved. You would check "Plumbing". Plumbing checks plumbing only nothing else. They have no idea you are going to drill holes. More than half the time the plumber doing the work don't know how/where/what until the concrete it cut opened or subfloor is removed and could/would change their minds the day of the job depends on what parts they have on the truck and what may be easier or harder. The inspector that comes by is the one who would say "oh no, this requires structural approval" or he may overlook it entirely.

Some systems are smarter, like if you select a NEW ELECTRICAL WATER HEATER, it will automatically select Plumbing and Electrical as the department involved, some aren't.

For installing a set of fence for example, all we do is to use a sharpie and mark on a survey a hand drawn line saying "NEW 6 FT WOOD FENCE" next to it. The inspector would expect you to be familiar with south Florida hurricane code and knows how big and deep the post holes are placed, how far to space the posts, how many braces, what type of nails, which side faces out, which side faces in, etc etc etc...all done at pole hole inspection and final inspection, no plans needed or the plans is just for the zoning person to see the location of the fence who doesn't care how it's built. Each department checks their own thing.

They assume if each department checks their own things, then hollistically they have checked the overall system.

A lot of time is more about liability then safety.



Edited 1 times.

..... 4th world .....




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