hide waste pipe

lillyput · 4 Apr 2021

hello all, i'm currently renovating my bathroom and want to the waste/drain(?) pipe behind the sink. i'm going to be lifting up the tiles and can chase into the walls as will be adding panels later. my question is, can i hide this pipe behind the wall, if so, what would this require, and it is advisable to do, ie are there issues with it being in an enclosed space?

thanks

HERTS P&D · 4 Apr 2021

Whatever you do, don't do it at 2am in the morning, your neighbours won't be too happy!

Andy

johnny2007 · 4 Apr 2021

Don't complicate things.
That pipe is behind the sink and won't be too visible.
In fact, if you go for a vanity unit, it will be invisible.

Sonic70 · 4 Apr 2021

You are probably only noticing it because of the black pipe. Can you replace that for white? Our soil pipe for toilet used to be black and that really stood out as well.

Madrab · 4 Apr 2021

What type of basin will you be installing? Same one?

Alec_t · 4 Apr 2021

At some point in the future you will need access to the pipe, so allow for a removable panel/unit.

Hugh Jaleak · 4 Apr 2021

If using same type of Basin, bring the pipe forward from the wall at floor level using 2x 45° bends, and then bring the pipe up within the pedestal, then use a Pedestal trap to keep it all hidden.

lillyput · 5 Apr 2021

HERTS P&D said:
Whatever you do, don't do it at 2am in the morning, your neighbours won't be too happy!

Andy

lol i have been guilty of working pretty late but i don't think i'd have the energy at that time!

lillyput · 5 Apr 2021

johnny2007 said:
Don't complicate things.
That pipe is behind the sink and won't be too visible.
In fact, if you go for a vanity unit, it will be invisible.

unfortunately my bathroom is tiny, and vanity unit(unless the size of a pedestal) is out of the question

lillyput · 5 Apr 2021

Sonic70 said:
You are probably only noticing it because of the black pipe. Can you replace that for white? Our soil pipe for toilet used to be black and that really stood out as well.

i could replace with white, do be honest i've seen bathrooms where the pipe goes into the wall, it looks better but probably maintenance is a pain

lillyput · 5 Apr 2021

Madrab said:
What type of basin will you be installing? Same one?

yes

lillyput · 5 Apr 2021

Alec_t said:
At some point in the future you will need access to the pipe, so allow for a removable panel/unit.

yeah that sounds like good advice

lillyput · 5 Apr 2021

Hugh Jaleak said:
If using same type of Basin, bring the pipe forward from the wall at floor level using 2x 45° bends, and then bring the pipe up within the pedestal, then use a Pedestal trap to keep it all hidden.

i wish i understood this, but it is pretty late so will try again tommorrow

Madrab · 5 Apr 2021

Yes the pipe can be hid in the wall if you really want. You will need to use solvent weld pipe, extend the pipe in the floor back and then a swept elbow up, bring it up to the level of the outflow of the trap and then and another swept elbow and bring the pipe out so when you replace the basin and pedestal the pipe can be cut to length to fit into the trap. then close the floor and the wall back up.

Alternatively @Hugh Jaleak 's option is the best way to hide the pipe and straight through or pedestal trap into the space at the back of the pedestal without opening up the wall.

lillyput · 6 Apr 2021

Hugh Jaleak said:
If using same type of Basin, bring the pipe forward from the wall at floor level using 2x 45° bends, and then bring the pipe up within the pedestal, then use a Pedestal trap to keep it all hidden.

ok so reflection, this sounds like a good compromise
.
just a couple of question on this.

when you create 2 90deg bends, are there any issues with air trapping the water, or issues of that nature?
when you ssay a pedestal trap, are you talking about something like this:

are these just as effective as normal s traps in trapping water, preventing foul smells coming back up?

thanks

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hide waste pipe

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