I really need some help? Tub won't drain and there are no clogs.

[rhoadie1005]

I replaced the whole main drain outside. There is only 1 sink, 1 tub, and 1 toilet in house. The toilet and sink drain fine. Tub drains slow. The sink doesn't have a p trap and is rigged all wrong. Toilet and tub have p traps. If sink doesn't have one will it cause the tub to drain slow if they are connected to the same drain pipe?

 

[voletl]

Your sink not having a P-trap is a serious health hazard in itself I would address that first before addressing the tub

 

[rhoadie1005]

Ya I got the p trap for it. We are in the process of moving in. Trying to get this prob fixed. Any advice on the other question.

 

[voletl]

Anyway you can post a picture of the tub Plumbing

 

[rhoadie1005]

Ya I'm not there now. The tub plumbing has a p trap. I ran snake through the drain from tub and it wasn't clogged.

 

[rhoadie1005]

I will send u a picture when I get there. The sink and tub share same drain pipe.

 

[rhoadie1005]

Now if the tubs p trap isn't set up right would that cause it?

 

[voletl]

Could be the case could be a venting issue too. Try to post a picture when you can

 

[rhoadie1005]

I will have one for u tomorrow.

 

[Zanne]

The toilet doesn't need a P-trap because it has one built inside of it. It should have a closet bend.

Do you know if your tub has a vent after the P-trap? How long is the trap arm (horizontal pipe coming out of the P-trap).

There are numerous things that could be wrong: It could be sloped improperly, there could be no vent or a clogged vent, or insufficient pipe size. Tub drain pipe should be 2-inch. Sink should be 1 1/4 to 1 1/2 inch. The pipe needs to slope downward 1/4 inch per foot in order for the water to drain properly.

When you say the tub and sink share a drain, does the tub drain reduce in size to connect to the sink drain? It is against code to reduce pipe size on a drain.

Also, the point of the P-trap is to hold water to prevent sewer gases from coming up into your home. The sink needs to get a P-trap asap. It needs to have the trap and then at least a 3 to 4-inch trap arm before it vents.

Snakes don't always clear clogs. But never use so-called drain cleaners (the harsh liquid chemicals). They can damage the plumbing and injure plumbers. They also don't work very well.

 

[rhoadie1005]

I'm headed to the house to work on drain. I will take pics of everything.

 

[frodo]

does your tub have a trip lever ? for the waste and over flow ?

that would be that handle you lift up and down to fill the tub.

pull the linkage out, it may have a big ass hair ball with soap stuck to it

mmmmyum yum !!!

 

[rhoadie1005]

Tub plumbing

View attachment 1469483217154.jpg

 

[Mr_David]

S-trap. Not vented.
You also do not have an overflow of which also helps and allow air to flow into drain. do you have a grid or perforated cover on the drain opening?
like in first photo if so remove it.
then it should look like the 2nd photo.



Try this easy experiment:
Fill tub 1/4 full
Then stick a 1/2" piece of copper pipe into the drain.
to allow air to enter the drain as it is draining.
Does it drain?

 

[Mr_David]

That looks like a pressed steel tub.
Maybe when they installed it there was already a p-trap below the fitting at ground level and now it has 2 p-traps. Just a thougyht

 

[voletl]

That's all sorts of jacked up. They created an S trap which is illegal and there is no vent.

 

[frodo]

i agree, i think it has 2 traps and they are clogged up

r&r rip out and redo

 

[Zanne]

Maybe my vision isn't great, but it sort of looks like the tailpiece coming out of the drain flange is too small. Having it get that narrow might be creating a bit of a bottleneck. I think. I'm not an expert.
Anyone else notice that or am I just mistaken?

 

[digitalplumber]

My son had a slow draining washer, the pros came out under the home warranty, snaked it said nothing there, took our money and left. I went on the roof, down the vent and hit a dry clog or dirt dabbers nest. (Home was for sale and had set idle for a while)

All drained fine after that.