- Joined
- 24 Feb 2012
- Messages
- 66
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- Country
Hi all,
See the diagram attached for a visual explanation here.
We have an extension on the back of the house. Due to one reason and another the bifold doors that go across the back and set pretty low in the brickwork. There will be a 1 - 1.5 brick stepdown from the sill to the ground.
To the side of the extension is a manhole cover. Under there is a drain which takes waste down a run of 4 houses to the sewer. In the past this drain has been a bit overloaded when there has been a random heavy prolonged storm, which causes water to come up out of the man hole for the houses further down the run.
I'm a bit concerned about this happening and water building up in front of the bifolds, and coming in to the property.
I'm thinking about burying a sump/pump to intercept any water coming up and take it the back of the garden, as shown in the sketch. My questions around all of this are:
1) there will be an aco drain in front of the bifolds. However, if the drain gets overloaded this will be quite useless. Is it ever an option to put holes in the bottom of an aco drain to give water an alternative escape when full?
2) Can you see any issues with the sump/pump idea? I have easy access to power to plug in a pump. I was thinking of getting a container and lid, and to just plonk one of these in it:
Titan 750w >
3) in the event of a flash flood and water rising up against the bifold doors, how likely are they hold the water back without leakage? Doors are smart visofold 1000, aluminium frame.
The objective is to get water away from the doors/extension for as long as is needed, until excessively heavy downpours stop.
See the diagram attached for a visual explanation here.
We have an extension on the back of the house. Due to one reason and another the bifold doors that go across the back and set pretty low in the brickwork. There will be a 1 - 1.5 brick stepdown from the sill to the ground.
To the side of the extension is a manhole cover. Under there is a drain which takes waste down a run of 4 houses to the sewer. In the past this drain has been a bit overloaded when there has been a random heavy prolonged storm, which causes water to come up out of the man hole for the houses further down the run.
I'm a bit concerned about this happening and water building up in front of the bifolds, and coming in to the property.
I'm thinking about burying a sump/pump to intercept any water coming up and take it the back of the garden, as shown in the sketch. My questions around all of this are:
1) there will be an aco drain in front of the bifolds. However, if the drain gets overloaded this will be quite useless. Is it ever an option to put holes in the bottom of an aco drain to give water an alternative escape when full?
2) Can you see any issues with the sump/pump idea? I have easy access to power to plug in a pump. I was thinking of getting a container and lid, and to just plonk one of these in it:
Titan 750w >
3) in the event of a flash flood and water rising up against the bifold doors, how likely are they hold the water back without leakage? Doors are smart visofold 1000, aluminium frame.
The objective is to get water away from the doors/extension for as long as is needed, until excessively heavy downpours stop.