After studying the Osma product guide and the architects bathroom layout
I am uncertain how best to go about connecting the various wastes.

Chalet bungalow dormer rooms tend to be T shaped with the window at the
foot of the T. I suppose the bath would fit under the window but my
preferred layout is to have wash basin, bidet, toilet there and the bath
tucked into a T top corner. Fortunately the floor joists are 225mm deep
and run in a convenient direction so I have space to get the falls
needed.

This layout brings the issue of connecting the bath waste upstream of
the toilet. Good for keeping the soil pipe clean but there doesn't seem
to be anything available to connect readily to the end of the pipe. Lots
of choice for branches with connecting bosses but they are always where
the toilet waste would enter which I think breaches the guidance.

Any thoughts?
--
Tim Lamb

Tim Lamb wrote:
After studying the Osma product guide and the architects bathroom layout
I am uncertain how best to go about connecting the various wastes.

Chalet bungalow dormer rooms tend to be T shaped with the window at the
foot of the T. I suppose the bath would fit under the window but my
preferred layout is to have wash basin, bidet, toilet there and the bath
tucked into a T top corner. Fortunately the floor joists are 225mm deep
and run in a convenient direction so I have space to get the falls needed.

This layout brings the issue of connecting the bath waste upstream of
the toilet. Good for keeping the soil pipe clean but there doesn't seem
to be anything available to connect readily to the end of the pipe. Lots
of choice for branches with connecting bosses but they are always where
the toilet waste would enter which I think breaches the guidance.

Any thoughts?
Are Strap Bosses, the thing you are looking for?

Bob

On Friday, 24 February 2017 21:29:13 UTC, Bob Minchin wrote:
Tim Lamb wrote:
After studying the Osma product guide and the architects bathroom layout
I am uncertain how best to go about connecting the various wastes.

Chalet bungalow dormer rooms tend to be T shaped with the window at the
foot of the T. I suppose the bath would fit under the window but my
preferred layout is to have wash basin, bidet, toilet there and the bath
tucked into a T top corner. Fortunately the floor joists are 225mm deep
and run in a convenient direction so I have space to get the falls needed.

This layout brings the issue of connecting the bath waste upstream of
the toilet. Good for keeping the soil pipe clean but there doesn't seem
to be anything available to connect readily to the end of the pipe. Lots
of choice for branches with connecting bosses but they are always where
the toilet waste would enter which I think breaches the guidance.

Any thoughts?
Are Strap Bosses, the thing you are looking for?

Bob

a bit personal isn't it?


NT

Tim Lamb wrote:

This layout brings the issue of connecting the bath waste upstream of
the toilet. Good for keeping the soil pipe clean but there doesn't seem
to be anything available to connect readily to the end of the pipe. Lots
of choice for branches with connecting bosses but they are always where
the toilet waste would enter which I think breaches the guidance.

Can you arrange it so you can use of the multi-inlet soil manifolds,
where the toilet feeds into a branch feeding into the manifold (and
presumably a soil stack (or stub for an AAV) leaving from the top of the
branch?

https://www.ondemandsupplies.co.uk/floplast-110mm-ring-seal-single-boss-soil-manifold-grey/

The internal channels are arranged so they don't count as opposing
inlets that normally have to be avoided.

In message , Andy Burns
writes
Tim Lamb wrote:

This layout brings the issue of connecting the bath waste upstream of
the toilet. Good for keeping the soil pipe clean but there doesn't seem
to be anything available to connect readily to the end of the pipe. Lots
of choice for branches with connecting bosses but they are always where
the toilet waste would enter which I think breaches the guidance.

Can you arrange it so you can use of the multi-inlet soil manifolds,
where the toilet feeds into a branch feeding into the manifold (and
presumably a soil stack (or stub for an AAV) leaving from the top of
the branch?

https://www.ondemandsupplies.co.uk/f...al-single-boss
-soil-manifold-grey/

The internal channels are arranged so they don't count as opposing
inlets that normally have to be avoided.

I saw those. Presumably intended for vertical mounting. The down pipe
will run through the soffit but there might be space. Access for future
maintenance will be a pig whatever I do. With the bath tucked into the
alcove, I'll need a hatch through the wall to get at the tap
connections.....hmm..

--
Tim Lamb

Tim Lamb wrote:

Andy Burns wrote:

Can you arrange it so you can use of the multi-inlet soil manifolds

I saw those. Presumably intended for vertical mounting.

Yes, generally the manifold would go in a corner and you aim all the
soil and waste pipes toward it, might not work in all situations

https://youtu.be/_1SUraAUc-E

In message , Andy Burns
writes
Tim Lamb wrote:

Andy Burns wrote:

Can you arrange it so you can use of the multi-inlet soil manifolds

I saw those. Presumably intended for vertical mounting.

Yes, generally the manifold would go in a corner and you aim all the
soil and waste pipes toward it, might not work in all situations

https://youtu.be/_1SUraAUc-E

OK. Thanks for that. Might also help with the ground floor wet room
issues.


--
Tim Lamb