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Plumbing problem

  • 06-08-2011 3:37pm
    #1
    noddy78779
    Registered Users, Registered Users 2 Posts: 76 ✭✭


    Hi,
    Recently i've been encountering a problem recently with the plumbing in my house. I got a pump installed a few years ago and since i have been encountering a problem with the water pressure.

    Whenever the pump is on the cold water pressure is fine however when i need hot water in the shower i need the bathoom tap open in order for there to be sufficent enough pressure for the hot water to come.

    Has anybody else experienced this problem? And if so any tips on how to fix it. Thanks in advance for any help.


Comments

  • #2
    Buford T Justice
    Registered Users, Registered Users 2 Posts: 6,262 ✭✭✭Buford T Justice


    Is it a twin impellor pump, to pump both the hot and cold? If so, does the pump kick in when you only have the hot water on?

    You could have an airlock in the hot pipe.


  • #3
    Joey the lips
    Registered Users, Registered Users 2 Posts: 10,262 ✭✭✭✭Joey the lips


    Its the strangest problem i have ever heard off. Can you take photo's of your plumbing especially where the pump isw plumbed in.


  • #4
    Buford T Justice
    Registered Users, Registered Users 2 Posts: 6,262 ✭✭✭Buford T Justice


    Joey the lips wrote: »
    Its the strangest problem i have ever heard off. Can you take photo's of your plumbing especially where the pump isw plumbed in.

    Ah now come on..... you've heard stranger than this surely......:D


  • #5
    ART6
    Registered Users, Registered Users 2 Posts: 2,632 ✭✭✭ART6


    There was a similar thread about this recently. See

    http://www.boards.ie/vbulletin/showthread.php?p=73134205

    It's not an unusual problem.


  • #6
    mchammer
    Registered Users, Registered Users 2 Posts: 225 ✭✭mchammer


    sounds like you have low pressure.. for the pump to kick in it needs to detect a certain amount of water flow which will cause the pressure to lower and the pump to kick in. The problem with your shower is that the flow is not enough when you turn on your shower because there is not enough pressure (via gravity) coming from your wherever your water is stored to get the pump to kick in.

    next time turn on your shower and instead of turning on the tap for the pump to kick in try lowering the height of the shower head until the pump kicks in.. its not a fix but it explains the problem...;)


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  • #7
    Sparkpea
    Registered Users, Registered Users 2 Posts: 1,118 ✭✭✭Sparkpea


    possibly connected the tee off the hot water pipe to the pump above the draw off on the expansion pipe rather than first tee off or first tee below the expansion tee and is sucking in air. Not that uncommon if its not piped right. Can you take pics as Joey said please.


  • #8
    Sparkpea
    Registered Users, Registered Users 2 Posts: 1,118 ✭✭✭Sparkpea


    maybe what I said doesn't sound great to read perhaps this link will show u what I mean

    http://salamanderpumps.co.uk/WebResources/Documents/Installation_Guidelines_Nov_2010_Issue13.pdf

    look at fig 1, 2, 3 and read point 11 especially


  • #9
    Joey the lips
    Registered Users, Registered Users 2 Posts: 10,262 ✭✭✭✭Joey the lips


    Sparkpea wrote: »
    possibly connected the tee off the hot water pipe to the pump above the draw off on the expansion pipe rather than first tee off or first tee below the expansion tee and is sucking in air. Not that uncommon if its not piped right. Can you take pics as Joey said please.

    This is what i am thinking. That link above is a good reference for diyers as well.


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