Right to start off, there used to be a hot water cylinder in our bathroom right next to the bath which had a 22mm copper outlet for the hot water, this was then reduced to 15mm for the basin, then on through the house to the kitchen sink.....
2 years ago we had a combi boiler fitted in the kitchen, and the cylinder in the bathroom was removed. So now the hot water runs from the other way, 15mm in the kitchen then basin, then 22mm to the bath.
I am currently in the process of removing the exsisting bathroom rearranging it, and fitting a new suite. (with the rest of the house reno aswell)
The question is, when I am replacing all the copper pipe, do continue to use 15mm copper, then use 15mm to 22mm tap connectors, or should I consider replacing as much of the 15mm hot water pipe with 22mm.
I am using monoblock taps on the bath (22mm conection needed) and basin (15mm copper tails), I'm trying to avoid problems with low hot water flow into the bath, its a little lower since the combi was fitted anyhow.
Many thanks
ps. Believe it or not I did study plumbing at college for 2 years about 10 years ago, seems I forgot the bits about this, lol.
2 years ago we had a combi boiler fitted in the kitchen, and the cylinder in the bathroom was removed. So now the hot water runs from the other way, 15mm in the kitchen then basin, then 22mm to the bath.
I am currently in the process of removing the exsisting bathroom rearranging it, and fitting a new suite. (with the rest of the house reno aswell)
The question is, when I am replacing all the copper pipe, do continue to use 15mm copper, then use 15mm to 22mm tap connectors, or should I consider replacing as much of the 15mm hot water pipe with 22mm.
I am using monoblock taps on the bath (22mm conection needed) and basin (15mm copper tails), I'm trying to avoid problems with low hot water flow into the bath, its a little lower since the combi was fitted anyhow.
Many thanks
ps. Believe it or not I did study plumbing at college for 2 years about 10 years ago, seems I forgot the bits about this, lol.