Hi there,
See Pic please.
bottom right hand diagram shows inspection chamber of the type I have seen before: staring down onto a half pipe that enters and leaves the 'box'.
My neighbour today alerted me to a blockage where our two fould wastes join entering an inspection chamber. The inspection cover is under a hedge. Once lid removed I found it was blocked to brown line. Almost to surface.
Rodding what I thought was main outlet- very large bore pipe, cleared it. Though my neighbour who has been into pit before told me to keep going to clear the lower pipe. He said upper pipe was overflow and there is a u-bend lower down. Sure enough there was. We cleared it. But I cannot work it out. We never got the rods to go around the curve -too tight- but pressure did blast water back up main larger pipe as we cleared the lower one. I.e. they are connected as diagram.
Is the lower pipe going to a bottle type gulley? It felt almost square? Though I only gauge this from rodding.
Why a u-bend down there? Is what we have normal- can someone explain please?
I only ask as suspect, given appearances, that it will block again.
TIA.
See Pic please.
bottom right hand diagram shows inspection chamber of the type I have seen before: staring down onto a half pipe that enters and leaves the 'box'.
My neighbour today alerted me to a blockage where our two fould wastes join entering an inspection chamber. The inspection cover is under a hedge. Once lid removed I found it was blocked to brown line. Almost to surface.
Rodding what I thought was main outlet- very large bore pipe, cleared it. Though my neighbour who has been into pit before told me to keep going to clear the lower pipe. He said upper pipe was overflow and there is a u-bend lower down. Sure enough there was. We cleared it. But I cannot work it out. We never got the rods to go around the curve -too tight- but pressure did blast water back up main larger pipe as we cleared the lower one. I.e. they are connected as diagram.
Is the lower pipe going to a bottle type gulley? It felt almost square? Though I only gauge this from rodding.
Why a u-bend down there? Is what we have normal- can someone explain please?
I only ask as suspect, given appearances, that it will block again.
TIA.
