Replacing a smashed sink (plumbing newbie)

dave988

dave988

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I need to replace a sink at home, that I smashed :eek:
There was a guy that was going to do it but he never came back, but he was saying he wanted to install isolation valves to make the job easier. The guides on the internet on how to do this don't mention them unless I have misunderstood. Do I need them? Any advice before I dive in? :D
 
Well...........you need to know where the water shutoff is first.
Then you need to make sure there are individual shutoffs for the new faucet.
A picture would be nice here.
 
Here are pics of (I believe) the shutoff valves/pipes under basin:

Terry said
'Then you need to make sure there are individual shutoffs for the new faucet. '

To do this I try to turn off a valve then try the hot and cold tap?

dave988-2.jpg


dave988-1.jpg
 
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Yes that is correct...you don't want to go cutting any pipe unless you know for sure the water is not running at all.

It looks like you need a new trap also.

I would install a T with AAV above it, if at all possible, and have the new trap run into it.
 
Cass, please explain, are you saying I should install a new trap because its not compatible with an Air Admittance Valve? OR?

It says that to install the Air Admittance Valve is slip onto the top of the soil and vent pipe. The picture shows the soil pipe going vertically up but I think here its going horizontally along the bathroom boxed and tiled over. Would that be a problem to fit it?
 
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Do I need to change the trap then? I dont understand why I need all these extras. The sink did work without them before I smashed it :)
 
Repair and replacement can get difficult depending on the feeling of the local building inspector. Generally, when you replace something, you have to bring that portion up to code. On a repair, you can often replace what was there and make it whole again. Fine line. An S-trap is subject to being sucked dry and then you don't have any barrier to sewer gasses, and whatever may be living down there. SO, it is better to make it right, but you may not have any problem with an S-trap depending on how the rest of the plumbing is layed out. Doesn't make it comply with the current codes, though.
 
I have never encountered a smell coming from the sink so I guess its ok as it is. We have been living here for 10 years and probably will be here in 10 years so not worried about code, as long as the sink works again and I don't wreck the house in the process lol :o
Thanks for explaining that though, but whats the easiest fix to get it back to how it was? I have the replacement sink to go on the pedestal and new taps is there anything else?
 
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Dave take a shot of the sink drain from further back... I'd like to see more of it. From the looks of those supplies you are probably going to need a plumber unless you know how to sweat pipe. Those supplies will more than likely not line up with your new sink. 99.999999999999999999999999995% positive!
 
The sink is identical I believe. Why would the pipes not fit? :confused:

DSC01470.jpg
 
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You have an S trap which is no longer permitted. However, it is a large enough pipe that it is never going to siphon when running water through the faucet and is probably never going to siphon if you open a standard drain.

The only way it could possibly siphon is if you had a full sink with the drain closed by one of those rubber stoppers, and you suddenly removed the stopper; and even that is unlikely.

You shouldn't need an inspection and permit to replace a broken sink.

If it were mine I would replace the sink and would sleep well at night.
 
There is a chance the water lines will line up but only if the combined height of the new pedestal sink from floor to faucet connections is perfect.

Personally I would try and change out the trap and install a T with AAV, you might have to re pipe the drain line closer to the wall.

It looks like there would be room to do it.
 
Cass 'Personally I would try and change out the trap and install a T with AAV, you might have to re pipe the drain line closer to the wall.

It looks like there would be room to do it.'


Well, I cant do that sorry this is just too complicated, If only I were a trained plumber, I only have half a brain. If I manage to not flood the house its a bonus!
My dad won't let me do it till hes arranged the house insurance :D

Fingers crossed I won't have to sweat any pipes. Will I need a Pipe wrench or can it be done with a couple of adjustable wrenches?
 
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