Sub floor void flooding - Expert help desperately needed

[ROYJACK]

Hi, the sub floor void beneath our bungalow floods following rain. We have been draining it on a daily basis since the middle of December, and when first found it was 200mm deep Removed 150 litres this morning.

Drains checked, new gully installed and United Utilites say no leaks. Water does have evidence of Chlorine? It is definately not coming from inside our house.

We do have a problem at the back of the house with water not draining and think perhaps this may be some of the problem. The water enters the void from the front, but this may be due to it being the lowest level I have had so many people out and paid out hundreds of £s trying to keep this water out, but still no solution. Is there a really good contractor in the Greater Manchester area, that specialises in "Land Drains". I would appreciate any help or recommendations.

Once the source can be found and dealt with, new pathways and drives will need to be laid. This will be a good job for the right, knowledgable contractor.

Fab site Tony!

[seanandruby]

was it leaking before you had any work done? Maybe your water supply got knocked during the installation.

[oioisonnyboy]

maybe (its a long shot) water is coming towards the house via the trench your drain is laid in.

Im thinking...possible water pipe leaking outside your property...if there is enough leaked water it can travel through the shingle of a drainage trench and end up where it shouldnt be.

Have any roadworks been done in the pavement or road outside your property? What sort of soil type do you have in your area? Any possible redundant drainage near your property?

Its a very long shot but it can happen!

[DNgroundworks]

Ive seen that happen on a job we are on at the minute,water doesnt even make it to a land drain instead it follows the trench of a new sewer pipe that is covered in shingle and has turned the garden into a bog!

[Mikey_C]

i'm pretty sure flowjoe, our resident drainage expert, is up near there or may well be able to point you in the direction of someone who is. sit tight (and keep bailing) i'm sure he will be along soon.

[ROYJACK]

was it leaking before you had any work done? Maybe your water supply got knocked during the installation.

Hi Sean, yes it's been leaking for about a year, we think. It wasn't until it was so deep it tripped the electricity last December, that we found it. Having the gully replaced it just one of many things we have tried up to now.

Jackie

[ROYJACK]

maybe (its a long shot) water is coming towards the house via the trench your drain is laid in.

Im thinking...possible water pipe leaking outside your property...if there is enough leaked water it can travel through the shingle of a drainage trench and end up where it shouldnt be.

Have any roadworks been done in the pavement or road outside your property? What sort of soil type do you have in your area? Any possible redundant drainage near your property?

Its a very long shot but it can happen!

It's very strange that it dries up when we don't have rain. The evidence of chlorine in the water suggests mains water. A conductivity test showed 400. Rain water only 100-130, but apparently ground water is 400. I don't quite understand that bit, doesn't the ground water come from rain.

I was very surprised at the speed it filled up, following 2 weeks of dry weather, we have had 2 or 3 days of heavy rain. So much water then penetrated, I just couldn't find the energy to drain it. I am going to leave it so that any contractors can see how bad it is.

Even though we do have a drainage problem at the back, I can't understand why there was not a problem for the fist 15 months of us living there. We did complete renovation and plumbers, sparks etc all under void to install pipe work. None reported a problem.

I am not aware of any road works or redundant pipe work. I have put a letter through every door in the immediate vicinity and only one person admitted to a problem, but nowhere near the level that we have.

I just feel it is mains water, that under dry conditions, naturally soaks away, but with heavy rain, can't and therefore gets forced into our property. Does that sound feasible?

Jackie

[ROYJACK]

Ive seen that happen on a job we are on at the minute,water doesnt even make it to a land drain instead it follows the trench of a new sewer pipe that is covered in shingle and has turned the garden into a bog!

Thank you, we don't know if there is a land drain and are in the process of trying to find a good contractor in our area.

Jackie

[mickg]

we cover Hazel Grove Royjack, I will call and have a look at the problem if you so wish

[ROYJACK]

i'm pretty sure flowjoe, our resident drainage expert, is up near there or may well be able to point you in the direction of someone who is. sit tight (and keep bailing) i'm sure he will be along soon.

Thank you, I will try to contact him.

Jackie

[seanandruby]

Are you anywhere near the sea, or an industrial area, water treatment works etc. I ask because of the chlorine?

[ROYJACK]

Are you anywhere near the sea, or an industrial area, water treatment works etc. I ask because of the chlorine?

No Sean, not near any of those

Jackie

[seanandruby]

I would takr up mick's kind offer, because you will just keep going around in circles trying to solve it.

[ROYJACK]

Hi all, well we have at last found the problem. We have an old culvert that runs under the foundations of our bungalow and it had collapsed outside the front of the house. Hence the water found a weak spot and entered the sub floor void, instead of flowing away. Just need to get insurance co to help out now. Many thanks to all who replied to my request for help and especially those who came round.

[local patios and driveway]

Its probably something like an old culvert that runs under your foundations that may have collapsed