Hi
I'm in a small 5th floor flat. The main services, incl soilstack, are conected via a service shaft on my side of a party wall between kitchen and bathroom, which are back to back with partitioning between. The taps end of the bath was only 450-500mm from the bath waste in the stack.
The plan is to replace the bath with a shower cubicle and laundry cupboard to house w m/cine and drier, rebuild the partition betwen k &b about 600mm futher into the kitchen to absorbe what is actually a redundant cupboard in the kitchen (on the other side of the partition from the bathroom) and move the WC and basin into the new extra space on the bathroom side. On the kitchen side the cupboard will just disappear and I can fit extra worktop with cupboards above aginst the new studwall partitioning. I've already posted on Building about the partition and had really helpful replies re acoustics and materials etc.
I've now removed all the partitioning around the service shaft and part of the partition between k & b, taken out the bath and measured up for the shower. The existing bath waste is far too high to drain the new shower without raising the tray at least 165mm from the floor. I really want to install it on legs (Just Trays Merlin) directly on the screed for aesthetics and for headroom, which is very limited, and would be only just under 7' if tray raised to suit the existing drain.
The proposed laundry cupboard is going next to the shower cubicle, at the other end of the bath, so to speak, and the washing m/chine would have the waste pipe running vertically down and then under the shower tray to drain into the same waste in the stack T-union. I assume that will work OK and plan to fit a vertical HepVO. There will be an Xpelair LV humidistat extractor mounted in the laundry cupboard into a flat duct across the celing through the kitchen via flat duct to exhaust onto my balcony. There will be identical Xpelair LV humidistat extractor in the shower cubicle following the same or similar extraction route. I'm unclear whether they can share the ducting, but since they both have trickle extract, I guess not.
To resolve the shower height problem, I am going to need either to replace the entire T union, into which the bath waste and WC soil pipe both connect into, shorten the section of stack below the T and lengthen the section above, which seems (a) a lot of difficult work and (b) too risky - there are 2 flats above mine, not to mention 5 below, or to make 2 new connections into the stack at the requisite distance below the existing T via strap bosses. Access to the stack is damned awkward for drilling and fitting, the shaft is only 600x400mm and contains water mains, another drain and main electrical connection, but not impossible, hopefully, with an angled drill and patience, accuracy and perseverence.
I appreciate that there will be probably be insufficient room beneath the tray into a much lower waste connection to mount a 50mm seal conventional trap, so again, I plan to fit a HepVO horizontally. The w m/chine waste should fall OK under the shower tray in a lower position, assuming the initial vertical drop works without a problem (assume it will since it's pumped out) and if the shower drains OK - tray is 900mm long.
An electrician with Part P will connect the shower, fans. bathroom lights and some electric u/floor heating in k & b. Will this all work OK and am I going to need to notify BC of any of this for the DIY stuff, which is everything but the bathroom and u/floor heating electrics?
Sorry it's so long and detailed.......... Tried to cover all the points.
I'm in a small 5th floor flat. The main services, incl soilstack, are conected via a service shaft on my side of a party wall between kitchen and bathroom, which are back to back with partitioning between. The taps end of the bath was only 450-500mm from the bath waste in the stack.
The plan is to replace the bath with a shower cubicle and laundry cupboard to house w m/cine and drier, rebuild the partition betwen k &b about 600mm futher into the kitchen to absorbe what is actually a redundant cupboard in the kitchen (on the other side of the partition from the bathroom) and move the WC and basin into the new extra space on the bathroom side. On the kitchen side the cupboard will just disappear and I can fit extra worktop with cupboards above aginst the new studwall partitioning. I've already posted on Building about the partition and had really helpful replies re acoustics and materials etc.
I've now removed all the partitioning around the service shaft and part of the partition between k & b, taken out the bath and measured up for the shower. The existing bath waste is far too high to drain the new shower without raising the tray at least 165mm from the floor. I really want to install it on legs (Just Trays Merlin) directly on the screed for aesthetics and for headroom, which is very limited, and would be only just under 7' if tray raised to suit the existing drain.
The proposed laundry cupboard is going next to the shower cubicle, at the other end of the bath, so to speak, and the washing m/chine would have the waste pipe running vertically down and then under the shower tray to drain into the same waste in the stack T-union. I assume that will work OK and plan to fit a vertical HepVO. There will be an Xpelair LV humidistat extractor mounted in the laundry cupboard into a flat duct across the celing through the kitchen via flat duct to exhaust onto my balcony. There will be identical Xpelair LV humidistat extractor in the shower cubicle following the same or similar extraction route. I'm unclear whether they can share the ducting, but since they both have trickle extract, I guess not.
To resolve the shower height problem, I am going to need either to replace the entire T union, into which the bath waste and WC soil pipe both connect into, shorten the section of stack below the T and lengthen the section above, which seems (a) a lot of difficult work and (b) too risky - there are 2 flats above mine, not to mention 5 below, or to make 2 new connections into the stack at the requisite distance below the existing T via strap bosses. Access to the stack is damned awkward for drilling and fitting, the shaft is only 600x400mm and contains water mains, another drain and main electrical connection, but not impossible, hopefully, with an angled drill and patience, accuracy and perseverence.
I appreciate that there will be probably be insufficient room beneath the tray into a much lower waste connection to mount a 50mm seal conventional trap, so again, I plan to fit a HepVO horizontally. The w m/chine waste should fall OK under the shower tray in a lower position, assuming the initial vertical drop works without a problem (assume it will since it's pumped out) and if the shower drains OK - tray is 900mm long.
An electrician with Part P will connect the shower, fans. bathroom lights and some electric u/floor heating in k & b. Will this all work OK and am I going to need to notify BC of any of this for the DIY stuff, which is everything but the bathroom and u/floor heating electrics?
Sorry it's so long and detailed.......... Tried to cover all the points.
