Hi
In the interests of full disclosure I am not a farmer, but despite this I am hoping that you folks may have some experience/good ideas on how to tackle this problem.
I need to put a non-return/back flow valve into a run of 225mm twinwall pipe. I can't put a flap on the outlet so my plan is to dig down to the pipe, install a chamber and insert a back flow valve which is accessible for maintenance.
The problem is either side of the valve I need to connect the 225mm twinwall pipe to a 160mm pipe (as that is the size of the backflow valve). I am not concerned by the reduction as the 225 takes little more than a trickle from my side but I need to make sure my connections are watertight and will stand the test of time.
My plan is to lay the 160 pipe inside the twinwall, resting on the bottom of it and to slide a plastic crate with suitable cutouts over the point where the pipes overlap. I will then put some drainage cloth over the end of the 225mm pipe (wrapped tightly to the 160) and pour concrete in to fill the crate. So both pipes are surrounded by concrete at the point they meet and the fabric stops the concrete going into the 225 pipe.
Does this sound like a reasonable solution or are there any better suggestions/techniques?
Thank you!
In the interests of full disclosure I am not a farmer, but despite this I am hoping that you folks may have some experience/good ideas on how to tackle this problem.
I need to put a non-return/back flow valve into a run of 225mm twinwall pipe. I can't put a flap on the outlet so my plan is to dig down to the pipe, install a chamber and insert a back flow valve which is accessible for maintenance.
The problem is either side of the valve I need to connect the 225mm twinwall pipe to a 160mm pipe (as that is the size of the backflow valve). I am not concerned by the reduction as the 225 takes little more than a trickle from my side but I need to make sure my connections are watertight and will stand the test of time.
My plan is to lay the 160 pipe inside the twinwall, resting on the bottom of it and to slide a plastic crate with suitable cutouts over the point where the pipes overlap. I will then put some drainage cloth over the end of the 225mm pipe (wrapped tightly to the 160) and pour concrete in to fill the crate. So both pipes are surrounded by concrete at the point they meet and the fabric stops the concrete going into the 225 pipe.
Does this sound like a reasonable solution or are there any better suggestions/techniques?
Thank you!
