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Algae in HW

  • 11-03-2018 12:45pm
    #1
    JFKIRELAND
    Registered Users, Registered Users 2 Posts: 139 ✭✭


    Folks,
    We use the bath infrequently preferring showers. However this morning when I ran a bath- HW only I notice that there is some type of algae coming out of the hot water tap in the bath. It is a brownish green type colour. We did notice back a couple of months ago in the bathroom sink but ran the taps and it went away.
    Does anyone have any ideas what this maybe and what I can do to fix it?
    Thanks
    JFK.
    See photos attached


Comments

  • #2
    doolox
    Closed Accounts Posts: 2,350 ✭✭✭doolox


    Water from hot tap should be at least 55 degrees to prevent algae growth and run off regularly if not taking baths or using much water.

    Showers, often brief, and lower house occupancy, often two people or one.... means that the storage tank in the attic does not get emptied into the hot tank often enough. Hot water supply should be either cold to inhibit algae growth or over 55 degree hot to kill off any algae growth.

    It could be that your hot water storage tank is so old that a large quantity of silt and plant life has built up over the years.


  • #3
    rightjob!
    Registered Users, Registered Users 2 Posts: 478 ✭✭rightjob!


    JFKIRELAND wrote: »
    Folks,
    We use the bath infrequently preferring showers. However this morning when I ran a bath- HW only I notice that there is some type of algae coming out of the hot water tap in the bath. It is a brownish green type colour. We did notice back a couple of months ago in the bathroom sink but ran the taps and it went away.
    Does anyone have any ideas what this maybe and what I can do to fix it?
    Thanks
    JFK.
    See photos attached

    Any trouble with the heating in the house?
    Possible of having a pin hole in the coil


  • #4
    JFKIRELAND
    Registered Users, Registered Users 2 Posts: 139 ✭✭JFKIRELAND


    rightjob! wrote: »
    Any trouble with the heating in the house?
    Possible of having a pin hole in the coil

    Thanks for the responses guys.
    We are not having problems with the heating or temp of the water in the house.
    On saying that I was meant to get the pressure vessel replaced in the central heating system but I forgot about it.
    There was an issue with HW temp last year, but a plumber came and fixed that, but did say that I should replace the pressure vessel. There is a drip from some copper overflow pipe at the side of the house which is related to that I think?


  • #5
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭Wearb


    JFKIRELAND wrote: »
    Thanks for the responses guys.
    We are not having problems with the heating or temp of the water in the house.
    On saying that I was meant to get the pressure vessel replaced in the central heating system but I forgot about it.
    There was an issue with HW temp last year, but a plumber came and fixed that, but did say that I should replace the pressure vessel. There is a drip from some copper overflow pipe at the side of the house which is related to that I think?
    Your plumber should have explained the urgency in replacing the vessel. That water drip has to be replaced by fresh water which will damage your heating system over time.

    Please follow site and charter rules. "Resistance is futile"



  • #6
    Subtle
    Registered Users, Registered Users 2 Posts: 138 ✭✭Subtle


    Wearb wrote: »
    Your plumber should have explained the urgency in replacing the vessel. That water drip has to be replaced by fresh water which will damage your heating system over time.


    Also the original pressure loss could in theory be caused by a leak in the water cylinder heating coil (along the lines of what rightjob suggested), although I'm not sure how common this would be practice.


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