So our water supply comes in through the cellar and then splits in two to feed the kitchen/boiler and bathroom respectively. We just had the plumbers in to re-site the pipework before we do a cellar conversion. The plumbers have done a great job but one decision makes me wonder.
The have used 22mm from the main supply to run the 15 feet across the basement and then reduced down to 15mm for about two feet before splitting onto the two existing 15mm pipes that go off to the kitchen and bathroom. Any idea why they would introduce this short section of 15mm rather than taking the two feeds directly from the 22mm? My simple mind thinks splitting a 22mm feed is better for flow than splitting a 15mm pipe especially if both pipes are feeding simultaneous demand.
I had previously mentioned to the plumber that flow to the bathroom gets hit whenever, say, the dishwasher goes on and was hoping to reduce this impact if at all possible. I asked the plumber about this thinking there was a technical/practical reason but got a "it wont effect anything" response. Thoughts ?
The have used 22mm from the main supply to run the 15 feet across the basement and then reduced down to 15mm for about two feet before splitting onto the two existing 15mm pipes that go off to the kitchen and bathroom. Any idea why they would introduce this short section of 15mm rather than taking the two feeds directly from the 22mm? My simple mind thinks splitting a 22mm feed is better for flow than splitting a 15mm pipe especially if both pipes are feeding simultaneous demand.
I had previously mentioned to the plumber that flow to the bathroom gets hit whenever, say, the dishwasher goes on and was hoping to reduce this impact if at all possible. I asked the plumber about this thinking there was a technical/practical reason but got a "it wont effect anything" response. Thoughts ?
Last edited: