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We recently built around a 1000 sq ft addition onto our house. The existing home had one or two additions to it prior since the main part was built in like 1930 something the plumbing is the regular yellowish piping but everything we added we used the newer pex piping. In the new bathroom we have a stand up shower and a separate big soaking tub my problem is the flow volume for the tub seems really low like to the point that I gave up on the faucet and when my wife was ready to try out our new bathroom I pretty much filled it up with a bucket line made of me and my four kiddos haha...Any helpful advice or something to try to increase the flow is very much appreciated

  • So other faucets in the house have acceptable flow? – elrobis Nov 8 '17 at 17:46
  • There was one existing bathroom and the kitchen sink and both are good...We also built like a laundry/mud room since the old laundry was very small and it was right next to the kitchen so it's now a pantry lol the hot water heater is also in the small old laundry room ... Hope some of that is useful for you – user76471 Nov 8 '17 at 17:51
  • On the problem faucet: If you turn just the cold to full blast, then switch to just the hot, full blast, are the pressures seemingly equal, or does one or the other have considerably more pressure? – elrobis Nov 8 '17 at 19:12
  • Something quick you can do is make sure the shut off valves are wide open for both the hot and cold feeds to the problem faucet. If one of them is partially closed...that may be the only problem. – elrobis Nov 8 '17 at 19:12
  • What size pex was used. Is it possible the lines are pinched some place. – Ed Beal Feb 23 '18 at 14:55
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You clearly have a problem. I am going to venture a guess that some debris got into the faucet on install. This can raise havoc with water delivery. Can you disconnect the supplies going to the tub faucet and check the pressure at that point?

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