Have been getting work from plumbers and I can't seem to get any decent advise. All the plumbers I speak to have a 'that'll do' approach to pipe sizing so I am giving up and going to DIY, hopefully with some advise from here.
Sorry for the long post. You can probably ignore the 'where i am' bit and just review the plan in the 'where i want to be' bit.
All input welcome.
Where I am
------------------------------
Standard size mid-terrace house with three floors (loft conversion about to kick-off). Two bathrooms, one on the first floor and second bathroom will be in the loft conversion on the third floor.
Bathrooms contain toilet, sink and thermostatic shower-over-bath.
Old pipework in 15mm copper.
Recently had the old lead mains supply replaced with a 32mm MDPE. I had asked them to terminate in 28mm copper before reducing to the existing 15mm as I plan to tee of various cold water supplies from a 28mm supply. They ignored this and brought the 32mm to a 25mm MDPE reducer with a short leg to a brass stopcock to 15mm copper.
Also recently had a Worcester Highflow 440 CDI fitted in the kitchen on the ground floor. I asked for the cold supply for be run in 22mm copper supply to the 15mm in the basement. They ignored this and fitted 15mm cold supply.
Also asked for 22mm hot and cold hep2o run to the loft. They ignored that and ran 22mm hep2o hot and 15mm hep2o cold.
Think all these plumbers are either cloth-eared or trying to **** me off. I'm not a plumber so I don't mind them doing something else if they know better but they didn't justify their decisions, just saying 'should be alright'. I think they just did them because their were a bit easier for them to install and materials cost a few quid less. Either way they will not be invited back again to do any work in my house.
Where I want to be
------------------------------
I think what I am after is pretty straight-forward plumbing and there must be a common way of achieving this.
This is the plan:
* 32mm MDPE mains supply to 28mm copper in basement supplying the following tees:
* 22mm hep20 cold supply to loft
* 22mm copper to boiler
* 15mm copper to existing first floor bathroom
* 15mm to kitchen (sink, dishwasher, washing machine)
* 22mm copper DHW from Worcester 440CDI supplying:
* 22mm hep2o to first floor bathroom and loft bathroom (shared supply)
* 15mm copper to kitchen sink
------------------------------
James
Sorry for the long post. You can probably ignore the 'where i am' bit and just review the plan in the 'where i want to be' bit.
All input welcome.
Where I am
------------------------------
Standard size mid-terrace house with three floors (loft conversion about to kick-off). Two bathrooms, one on the first floor and second bathroom will be in the loft conversion on the third floor.
Bathrooms contain toilet, sink and thermostatic shower-over-bath.
Old pipework in 15mm copper.
Recently had the old lead mains supply replaced with a 32mm MDPE. I had asked them to terminate in 28mm copper before reducing to the existing 15mm as I plan to tee of various cold water supplies from a 28mm supply. They ignored this and brought the 32mm to a 25mm MDPE reducer with a short leg to a brass stopcock to 15mm copper.
Also recently had a Worcester Highflow 440 CDI fitted in the kitchen on the ground floor. I asked for the cold supply for be run in 22mm copper supply to the 15mm in the basement. They ignored this and fitted 15mm cold supply.
Also asked for 22mm hot and cold hep2o run to the loft. They ignored that and ran 22mm hep2o hot and 15mm hep2o cold.
Think all these plumbers are either cloth-eared or trying to **** me off. I'm not a plumber so I don't mind them doing something else if they know better but they didn't justify their decisions, just saying 'should be alright'. I think they just did them because their were a bit easier for them to install and materials cost a few quid less. Either way they will not be invited back again to do any work in my house.
Where I want to be
------------------------------
I think what I am after is pretty straight-forward plumbing and there must be a common way of achieving this.
This is the plan:
* 32mm MDPE mains supply to 28mm copper in basement supplying the following tees:
* 22mm hep20 cold supply to loft
* 22mm copper to boiler
* 15mm copper to existing first floor bathroom
* 15mm to kitchen (sink, dishwasher, washing machine)
* 22mm copper DHW from Worcester 440CDI supplying:
* 22mm hep2o to first floor bathroom and loft bathroom (shared supply)
* 15mm copper to kitchen sink
------------------------------
James
