What bits needed for 1.5 bowl waste connection?

[tinnews]

I probably mostly know this already but as it's remote I'd like to be sure I have all I need.

What bit's do I need to connect up a 1.5 bowl sink to the waste? The sink comes with its waste connections with standard plastic threaded connectors so:-

Two traps to connect to the sinks A length of waste pipe with a T in it between the two traps Connect to the existing waste pipe

I guess I'd better take some converters as I'm not sure what size/type the existing pipe to the drain is.

Can on normally get away with just a short horizontal length and a T between the two traps? Is this the usual way to do it?

[dom]

one recently, and as usual, floplast is quite decent quality.

[PeterC]

Connectors to T the 2 outlets, bring the single leg of the T forwards, go round 180 deg. and stick in a HepVO trap. Hardly any wasted space and no underused trap on the half-bowl to collect crud. As far as I'm concerned, there's little point in having more than one trap in a room if all factors allow just one - 'isolating' things that are all open to the air is a waste of time.

[A.Lee]

Firstly, the smaller sink bowl is generally higher than the main bowl. You can get adjustable traps to compensate for this (get 2, so they can be adjusted up and down):

You will need around 1 metre of 40mm waste pipe, 1 bit from each trap to a T piece join, then from the T piece to the outlet pipe. Get a compression fitting to join the 2 bits, as they may be a slightly different size.

Full packs are available from Screwfix/Toolstation, but IMO they are usually pretty rubbish, and their pipes are always a non-standard, meaning extra compression fittings may be needed. Alan.

[tinnews]

Yes, I realised after I posted that the normal way to do it is with just one trap.

[The Medway Handyman]

I probably mostly know this already but as it's remote I'd like to be sure I have all I need.

What bit's do I need to connect up a 1.5 bowl sink to the waste? The sink comes with its waste connections with standard plastic threaded connectors so:-

Two traps to connect to the sinks A length of waste pipe with a T in it between the two traps Connect to the existing waste pipe

I guess I'd better take some converters as I'm not sure what size/type the existing pipe to the drain is.

Can on normally get away with just a short horizontal length and a T between the two traps? Is this the usual way to do it?

-------------------------------------------------------------------------------- B&Q et al sell a kit containing all the bits you need (in the kitchen section). You will also need the patience of a saint & a large tube of LS-X.

Bloody nightmare to get them in without leak's IME.

-- Dave - The Medway Handyman

[The Other Mike]

Leaks from where, the sink skin connection or the pipework?

[The Medway Handyman]

Leaks from where, the sink skin connection or the pipework?

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Both :-)

-- Dave - The Medway Handyman

[Skipweasel]

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I fitted my new 1.5 sink yesterday and didn't have a single leak. Must lead a charmed life!

Even better, not once did I empty the trap down the sink I'd just taken if off. I've lost count of how many times I've done that before.