Shower waste trap and P bend

[AverageDIYerEssex]

Sorry... me again. Something else I can't get my head around.

So I'm looking to fit the new shower trap. I have attached an image of the part that came with the shower tray and I have two questions if someone could help with.

1. Will I need a U-bend / P trap as well or is this built into these things?

2. How the hell do I fit this angled pipe outlet into the solvent weld system I am going to run!?!? I have been through my box of spares and scraps and can't really find anything that it fits nice enough to be confident it's right. It don't fit snuggly into 32/40 solvent weld. I can't find a compression fitting size that it'll go in (I have two of these pipes and cut one down to the 44.9mm diameter and tried that and the 50mm)

I've tried googling but to no avail and I don't Screwfix will be happy with me opening a load of bags of sockets to try them all out. It's doing my head in. I'm guessing someone has come across these before?

Thanks, as always.

 

[CountryFan]

It’s hard to tell whether there’s a trap built in, so you could always obtain one and return it if not needed, or go out and get one if needed. As for the connection, it’s 50mm isn’t it?

 

[AverageDIYerEssex]

It's 50mm OD but it's way smaller than the old 50mm pipe that I removed and from what I can see OD of 50mm solvent weld is actually 54mm so wouldn't fit the fitting.

 

[CountryFan]

I would perhaps go to a plumbers merchant, or even screwfix and take the fitting and see if it’ll fit a universal coupling, or even try solvent weld 50mm new coupling?

 

[AverageDIYerEssex]

I think I'll have to. Thank you for your help.

 

[Hugh Jaleak]

Doesnt appear to have a built in trap, so you'd need a Running Trap of HepVo valve to provide a water seal. Can you link to the manufacturer, if it's not compatible with UK waste systems then it isnt much good.

Ikea sink wastes are totally incompatible with anything over here, so we usually recommend folks throw away the provided kit and fit a McAlpine waste instead, which, quite usefully, has a 40mm outlet to accept a Trap.

 

[dilalio]

Bathroommountain.co.uk =

"We sell stuff we have no clue about, but it looks nice and is cheap"

 

[AverageDIYerEssex]

Doesnt appear to have a built in trap, so you'd need a Running Trap of HepVo valve to provide a water seal. Can you link to the manufacturer, if it's not compatible with UK waste systems then it isnt much good.

Ikea sink wastes are totally incompatible with anything over here, so we usually recommend folks throw away the provided kit and fit a McAlpine waste instead, which, quite usefully, has a 40mm outlet to accept a Trap.

So I've been looking at it and with all the bits that slot into the top, it appears that the little trays that slide in create a water trap. I'm going to do some tests before fitting it fully.

 

[AverageDIYerEssex]

Bathroommountain.co.uk =

"We sell stuff we have no clue about, but it looks nice and is cheap"

That does definately sound like them lol. Must say though I'm impressed with the quality of what turned up. Went for a matt black stuff and is a really nice finish.

 

[Madrab]

Where did the tray come from (link?) - there would hopefully be MI with it that details what's needed. If there are dip tubes, i.e. when you lift off the top cover there are open bottom cups that drop into a reservoir of water that is held in the linear waste, then that is the water seal and no trap would be needed.

As far as pipework is concerned I think it may need to be push fit PP pipe and not ABS solvent weld (SW) for the outlet, the OD's are different sizes. OD of PP/PB push fit (PF) is 40mm whereas the OD of ABS SW is 43mm, you may need to use a compression coupler to transition from 40mm PF to 43mm SW then normal SW reducer to go up to 50mm (56mm SW OD) if that's the main waste run size to the stack

 

[dilalio]

So I've been looking at it and with all the bits that slot into the top, it appears that the little trays that slide in create a water trap. I'm going to do some tests before fitting it fully.

The "hair traps" are often the water traps on those linear drains. Hard to tell from the drawing. Photos of the actual product better. But if little trays pull up and out, they are usually the traps... As is the inner piece on a macalpine shower waste... If they have o rings/gaskets around them it also indicates they are removable traps.

 

[dilalio]

Macalpine do euro adaptors to enable overseas stuff to mate with our pipework.

Had to use them on Bette trays a while back.

Google Search

 

[AverageDIYerEssex]

Where did the tray come from (link?) - there would hopefully be MI with it that details what's needed. If there are dip tubes, i.e. when you lift off the top cover there are open bottom cups that drop into a reservoir of water that is held in the linear waste, then that is the water seal and no trap would be needed.

As far as pipework is concerned I think it may need to be push fit PP pipe and not ABS solvent weld (SW) for the outlet, the OD's are different sizes. OD of PP/PB push fit (PF) is 40mm whereas the OD of ABS SW is 43mm, you may need to use a compression coupler to transition from 40mm PF to 43mm SW then normal SW reducer to go up to 50mm (56mm SW OD) if that's the main waste run size to the stack

This is the link to the tray.

https://www.bathroommountain.co.uk/tokyo-rectangular-matt-black-slate-texture-stone-shower-tray-1700x800mm-c48133

It does mention 'trap' in the description and the red circled bit is kind of a tray that slots in, and then another part slots into that which Creates a under/over part which I think if filled with water will hold it to create the trap.

I ended up finding a 40mm compression fitting that it went into. It wouldn't go into a normal 90 or 45 but I bought a Mcalpine extendable 40mmx40mm compression that it does fit. Strange how it won't fit into one make but does on another. The extendable part will help to get it facing the right way.

I was looking at running 50mm but the shower and bath both have 40mm outlets so kinda thought I won't be emptying the bath, draining the sink and having a shower at the same time so thought I'd just do 40 the whole way.

But please feel free to tell me if I'm wrong with my theory.

 

[AverageDIYerEssex]

The "hair traps" are often the water traps on those linear drains. Hard to tell from the drawing. Photos of the actual product better. But if little trays pull up and out, they are usually the traps... As is the inner piece on a macalpine shower waste... If they have o rings/gaskets around them it also indicates they are removable traps.

Ahhhh yes that's it. They have removable hair traps AND rubber gaskets. Must be those then.

 

[AverageDIYerEssex]

Had an absolute nightmare with it all yesterday. Was gonna spend the day running the waste pipes and then found I had two 22mm radiator pipes hinder the correct fall so had to cut out and make a workaround. Then realised I still weren't going to get the fall I needed with where I put the boss previously in prep for this job. (Had to put in a new soil stack going upstairs before building a kitchen unit in front of it and fitted a boss for when I did the bathroom)

Now I'm looking at trying to reach behind the cupboard to put a boss further along the run to get a lower drop starting point. It's not as easy as it appeared, but it's all learning.