Wetroom shower on solid floor with 75mm screed - low profile traps?

[Conor]

Our bathroom supplier has specced a preformed 1700x900mm wet-room tray with a 100mm deep trap for our wet-room. Issue is we only have a 75mm screed build up on top of our hallowcore slab.

It's "slot" type drain so I don't think we can use a third party trap.

 

Any other options? Are there low profile traps and shower tanking options out there? We can go down through the concrete slab almost straight away so no issues for the waste pipe - just need a trap withless than 75mm total height under the tray.

 

This is the kit:

https://www.plumbarena.co.uk/product/abacus-elements-level-tray-kit-16x9-end-linear-300-drain-emk3-en-1609/?gclid=CjwKCAjwj8eJBhA5EiwAg3z0m5iLGHqdfk1407NXHgRoDhBv_aPQGqJuCkwEf14NoNowmXMOm5EKjhoCv4MQAvD_BwE#.YTH-c2nTVCU

 

Edited September 3, 2021 by Conor

[Mr Punter]

Can you not just chisel out a bit of the floor slab where the trap is going?

[Conor]

1 hour ago, Mr Punter said:

Can you not just chisel out a bit of the floor slab where the trap is going?

 

Unfortunately it's right at the end of a long slab that's taking part of a wall and already has services though it... hesitant to cut anything from it.

[Mr Punter]

Should still be OK as you only need 150mm x 150mm x 40mm.  Can you ask the slab guys designer if it is OK?

[andy]

If you can drill a hole through, what about Wedi Fundo Primo, veritical drain?

 

https://www.wedi.de/en/products/building-systems/floor-level-showers/fundo-primo/#group1-15

 

Edited September 3, 2021 by andy

[Nickfromwales]

9 hours ago, Conor said:

 

It's "slot" type drain so I don't think we can use a third party trap.

It's only linear on the tray side, the trap dos not go linear, it's just a normal round trap so you only need to do as 

 

9 hours ago, Mr Punter said:

Can you not just chisel out a bit of the floor slab where the trap is going?

@Mr Punter says.

[Nickfromwales]

7 hours ago, andy said:

If you can drill a hole through, what about Wedi Fundo Primo, veritical drain?

Impey do similar, connecting to either 40 - 50 or 110mm pipe.

[Temp]

No insulation in the floor? Normally the combined depth of screed and insulation is sufficient.