Wetroom shower tray formers and vertical outlet trap options

[cwr]

I wonder if this is an unusual arrangement, given the apparent low availability of suitable gullies. Or am I missing an obvious solution...?

 

So, what I want to do is use a former (1200 x 900, center drain), with a gully that has a vertical outlet that goes straight into ta 110mm waste pipe that comes up through the slab floor. And I want a gully that the inners of which can be lifted out should access ever be needed to the waste pipe.

 

I've found a McAlpine gully that meets this spec but it is for membrane tanking. Could maybe make my own former from 4 bits of tile backer board and seal with tape and to the gully?

[PeterW]

Assuming you want to tile, the McAlpine one comes in a tile version here 

 

https://mcalpineplumbing.com/wet-room-products/tiles-gratings-accessories-and-conversion-kits/fgt150-sv-110-150mm-square-stainless-steel-tile-internal-non-return-valve-push-fit-outlet

 

need to get the tanking perfect though

[andy]

10 hours ago, cwr said:

I wonder if this is an unusual arrangement, given the apparent low availability of suitable gullies. Or am I missing an obvious solution...?

 

So, what I want to do is use a former (1200 x 900, center drain), with a gully that has a vertical outlet that goes straight into ta 110mm waste pipe that comes up through the slab floor. And I want a gully that the inners of which can be lifted out should access ever be needed to the waste pipe.

 

I've found a McAlpine gully that meets this spec but it is for membrane tanking. Could maybe make my own former from 4 bits of tile backer board and seal with tape and to the gully?

I am in a similar position, need two shower trays going which drain straight into soil pipe.

 

I am intending to use these - or one of the Wedi trays and then push 30cm or so of waste pipe down verically through a McAlpine DC2:

https://www.wedi.de/uk/products/building-systems/floor-level-showers/fundo-integro

[Russell griffiths]

Mcalpine do a number of these wet room traps, I’m just fitting a couple in this house and have used them in another place. 

However they are mostly for screened floors and not a former, you will need to buy one and see if you can fit it to your former. 

[MikeGrahamT21]

I found this whilst doing some research on wet rooms... https://bathcenter.co.uk/marmox-360-drain-inc-stainless-steel-grid-147643-p.asp

 

It does say it only fits marmox 360 trays though?

[ProDave]

11 hours ago, PeterW said:

Assuming you want to tile, the McAlpine one comes in a tile version here 

 

https://mcalpineplumbing.com/wet-room-products/tiles-gratings-accessories-and-conversion-kits/fgt150-sv-110-150mm-square-stainless-steel-tile-internal-non-return-valve-push-fit-outlet

 

need to get the tanking perfect though

I would be interested to see that.  It mentions "valve" not "trap" so is it a version of a fanny trap?  I wonder how it would stand up to a drain pressure test?

[JOE187]

The Mcalpine  traps work well  with utility room  floor similar principle to hep valve.

 

https://www.plumbers-mate-sales.co.uk/mcalpine-gully-tile-silicone-non-return-valve---39000054-4504-p.asp

 

 

[cwr]

Some interesting options there.

I've also found this from Harmer. Is for membrane though I might well go that route. Only concern is it's a 50mm water seal, our building regs say min 75mm...

[cwr]

As for trays, did I see somewhere on this forum someone that made their own by laying mortar sloped in towards the drain, or did I just imagine that...?

[Russell griffiths]

6 hours ago, cwr said:

As for trays, did I see somewhere on this forum someone that made their own by laying mortar sloped in towards the drain, or did I just imagine that...?

This is a standard detail, I will have a couple of these my last house had 3 it’s fairly normal 

you screed the floor with a fall to the drain, then tanking membrane then tiles, no tray needed. 

@Onoff has about 16,000 pictures of his. 

[cwr]

Thanks Russell, I'll try and find the posts.

Decided to go for the McAlpine one after all, as it's 75mm seal and that's what the regs say to use.