Campsite Toilet/Shower building - waste drainage design?

[dunny1234]

Hi,

I'm about to start building a timber frame toilet/shower building on a concrete slab. Before i pour the concrete, i want to leave a channel down the centre (length ways) of the slab for a 110mm/160mm sewer pipe, and all the connection junctions for the 6 toilets, 6 basins, and 4 showers. I thought this would be the best option, and a safer bet to get all the drainage connections lined up.

Once i've got the correct fall, and the sewer pipe links up with the septic tank, i plan to to fill the channel in with concrete, allowing me to construct the timber frame, and start on the interior.

Does this sound like the right way to go? Can anyone foresee any problems? Any better ways of doing it?

Any help would be gratefully received!

Thanks in advance

Untitled

• dunny1234
• 18 Sep 2011
• 2

Plan of shower/toilet building showing basin/toilet/shower position

Untitled

• dunny1234
• 18 Sep 2011
• 2

Rough plan showing soil pipe that will run down the centre of the building.