Following on from a previous post... I am putting a new bathroom in and copying the previous connections.
So there are two 15mm copper pipes feeding hot and cold which come from my combi boiler where everything is cross bonded. Where these pipes enter the bathroom they transition to plastic pipe somewhere under the floor (under the head of the bath). At this point there is a short run of plastic pipe may be 300mm which in turn connects to a braided metal flexi and onto the mixer tap (same for hot and cold). The bath is stainless steel.
Where the pipes connect with the flexis they also tee off in plastic to the shower mixer control, and also to the basin (braided metal flexi tap tails are used for the final connection to the basin mixer tap), with the cold carrying on to the toilet, again all plastic.
The central heating pipes have been rerouted, so they also pass under the bath, however as they enter the room under the stud wall they to transition from copper to plastic and run the full width of the bathroom before changing back to copper again where they connect to the old pipe work again as they exit under another stud wall. Somewhere in the middle of the run they tee off (in plastic) to a heated towel rail which also has an electric heater element.
In essence every bit of plumbing in the bathroom is done in plastic. But the pipes run from the boiler to the bathroom are still copper and the majority of the central heating system is still copper, only the parts in the bathroom have been changed to plastic.
There is no bonding anywhere in the bathroom, none of the copper pipes are bonded. The only bonding I can see is the towel rail which is bonded to the mains supply earth where the flex joins to the T&E cable so not really bonding just correct connection!
Is this ok to leave like this? I am concerned that there is such a short run of plastic pipe between the old copper pipes and the bath tap, also that the only bonding on the towel rail is from where the heater element screws in to it.
Anyway sorry this is a bit lengthy and thanks for you advice in advance.
So there are two 15mm copper pipes feeding hot and cold which come from my combi boiler where everything is cross bonded. Where these pipes enter the bathroom they transition to plastic pipe somewhere under the floor (under the head of the bath). At this point there is a short run of plastic pipe may be 300mm which in turn connects to a braided metal flexi and onto the mixer tap (same for hot and cold). The bath is stainless steel.
Where the pipes connect with the flexis they also tee off in plastic to the shower mixer control, and also to the basin (braided metal flexi tap tails are used for the final connection to the basin mixer tap), with the cold carrying on to the toilet, again all plastic.
The central heating pipes have been rerouted, so they also pass under the bath, however as they enter the room under the stud wall they to transition from copper to plastic and run the full width of the bathroom before changing back to copper again where they connect to the old pipe work again as they exit under another stud wall. Somewhere in the middle of the run they tee off (in plastic) to a heated towel rail which also has an electric heater element.
In essence every bit of plumbing in the bathroom is done in plastic. But the pipes run from the boiler to the bathroom are still copper and the majority of the central heating system is still copper, only the parts in the bathroom have been changed to plastic.
There is no bonding anywhere in the bathroom, none of the copper pipes are bonded. The only bonding I can see is the towel rail which is bonded to the mains supply earth where the flex joins to the T&E cable so not really bonding just correct connection!
Is this ok to leave like this? I am concerned that there is such a short run of plastic pipe between the old copper pipes and the bath tap, also that the only bonding on the towel rail is from where the heater element screws in to it.
Anyway sorry this is a bit lengthy and thanks for you advice in advance.
