I'm planning on adding a conservatory in future.

I am thinking of a conservatory with no dwarf wall. UPVC/glass panels
to the ground.

So I think a concrete pad base will be easiest.

I was planning to put a damp proof membrane down and up the wall of
the house.
The base will still be a step down from the kitchen door and be below
the damp proof
course of the house. I am planning to move my spa bath into the
conservatory.
What mix of concrete and thickness would be suitable?
I would have thought 6 inches should be good enough.

My only other problem is that the drain for the kitchen sink will be
within the conservatory.
How best can I deal with this as I don't want smells from the drains
back into the conservatory. The drain will also need to be available
for excess flow from the spa bath.

Any suggestions or advice.

On 25 Apr, 13:42, "
wrote:
I'm planning on adding a conservatory in future.

I am thinking of a conservatory with no dwarf wall. UPVC/glass panels
to the ground.

So I think a concrete pad base will be easiest.

I was planning to put a damp proof membrane down and up the wall of
the house.
The base will still be a step down from the kitchen door and be below
the damp proof
course of the house. I am planning to move my spa bath into the
conservatory.
What mix of concrete and thickness would be suitable?
I would have thought 6 inches should be good enough.

My only other problem is that the drain for the kitchen sink will be
within the conservatory.
How best can I deal with this as I don't want smells from the drains
back into the conservatory. The drain will also need to be available
for excess flow from the spa bath.

Any suggestions or advice.

The only proper way to deal with smells is to alter the drains. You
can put in a stub soil stack, and drain into that, removing the old
gully completely. Or even drain straight into a new access chamber
(with double-seal lid if it ends up in the conservatory) Make sure
that any rain water does not end up in the sewers though, unless you
have a combined sewer system in your area.
You may want some new drainage specifically for the hot tub. Like a
trapped drain in the middle of the floor for splashes ? The reason why
kitchen sink drains particularly end up smelling is that bits of food
go down - they really are better going straight into the sewer I
think.

Finally, as total bodge, you can build an air-tight box (tricky) with
access lid around the drain and put a plant pot on top !

Simon.

On Apr 25, 4:03*pm, sm_jamieson wrote:
On 25 Apr, 13:42, "





wrote:
I'm planning on adding a conservatory in future.

I am thinking of a conservatory with no dwarf wall. UPVC/glass panels
to the ground.

So I think a concrete pad base will be easiest.

I was planning to put a damp proof membrane down and up the wall of
the house.
The base will still be a step down from the kitchen door and be below
the damp proof
course of the house. I am planning to move my spa bath into the
conservatory.
What mix of concrete and thickness would be suitable?
I would have thought 6 inches should be good enough.

My only other problem is that the drain for the kitchen sink will be
within the conservatory.
How best can I deal with this as I don't want smells from the drains
back into the conservatory. The drain will also need to be available
for excess flow from the spa bath.

Any suggestions or advice.

The only proper way to deal with smells is to alter the drains. You
can put in a stub soil stack, and drain into that, removing the old
gully completely. Or even drain straight into a new access chamber
(with double-seal lid if it ends up in the conservatory) Make sure
that any rain water does not end up in the sewers though, unless you
have a combined sewer system in your area.
You may want some new drainage specifically for the hot tub. Like a
trapped drain in the middle of the floor for splashes ? The reason why
kitchen sink drains particularly end up smelling is that bits of food
go down - they really are better going straight into the sewer I
think.

Finally, as total bodge, you can build an air-tight box (tricky) with
access lid around the drain and put a plant pot on top !

Simon.- Hide quoted text -

- Show quoted text -

Thanks for that. I thought I should mention that I am not on mains
drainage.
There are two drain pipes one from under the kitchen sink another from
the downstairs
toilet. These meet up and go straight to a septic tank. A current soil
stack is near the
toilet.