DIY Doctor

Main navigation

low hot water pressure

Postby jennyb » Tue Jul 03, 2007 4:03 am

Have ridiculously low pressure from hot tap in bath-dribbles out when tap on fully-bathroom sink and kitchen sink not too bad. Have combi boiler apparently cold running from tank in loft and hot from mains??? Want to install a shower but no point if pressure remains poor. Any ideas?
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Tue Jul 03, 2007 3:59 am


Simply Build It

Postby DONFRAMAC » Wed Jul 04, 2007 12:10 am

Combi's not known for generous flow, but sometimes the bath supply is impaired by excessive pressure ;-- nipping the valve supplying the combi can help a little, but the best flow you can hope for is what you have at the basin in the bathroom. If the feed from the tank to the bathroom is only 15 mm you may get a little more by uprating to the old standard 22 mm, as far as the bath hot tap.
For a decent shower flow, you need to be thinking of a high KW electric unit, from the rising-main, or from the loft header if you choose pump-assist.
Rank: Ganger
Progress to next rank:
Posts: 195
Joined: Fri Mar 30, 2007 5:52 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics