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Radiators need topping up always

  • 22-10-2025 01:30PM
    #1
    FLOOPER
    Registered Users, Registered Users 2 Posts: 899 ✭✭✭


    Hi, The issue is that nearly everyday when I look at the pressure guage it is quite low and I need to top up the water pressure. It's not a lot but feel needs to be done. This occured a couple of years ago too and I put sealant in to the system and seemed to work.

    Just wondering if I need to insert sealent again into my homeheating system or is there a more serious issue.



Comments

  • #2
    10-10-20
    Registered Users, Registered Users 2, Paid Member Posts: 9,650 ✭✭✭10-10-20


    If it's almost daily then I'd start looking for leaks. Look around the joints at the bottom of rads and under carpets. Look for staining or mold, or particular rooms which are more humid than others. Look in and around the boiler and if you have a condensing boiler then look for indications of whether the run-off pipe outside is constantly dripping.

    Hope it helps.



  • #3
    DC999
    Registered Users, Registered Users 2 Posts: 1,603 ✭✭✭DC999


    Yeah, something wrong if daily. We had a leak before under the ground floor above a suspended floor. We never bothered finding it. Needed to top up water maybe 2 times a year.



  • #4
    FLOOPER
    Registered Users, Registered Users 2 Posts: 899 ✭✭✭FLOOPER


    Thanks for that guys.

    I will have a proper search for those leaks. 💪



  • #5
    ongarite
    Registered Users, Registered Users 2, Paid Member Posts: 8,649 ✭✭✭ongarite


    Never tried it but heard this trick before to find leak like yours.

    Add perfume to the water refill loop & then turn heating on for all zones, rooms & do a sniff test. Should be obvious if leak is from radiator.



  • #6
    10-10-20
    Registered Users, Registered Users 2, Paid Member Posts: 9,650 ✭✭✭10-10-20


    About time somebody found a use for Beckham's aftershave.



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  • #7
    Kaisr Sose
    Registered Users, Registered Users 2 Posts: 3,842 ✭✭✭Kaisr Sose


    I am not sure what type of boiler you have. Is it possible you are leaking pressue from the pressure vessel or safety valve ?

    Check the outlet pipe (outside) near flue, to see if it's dripping. It only takes about a cup of water to leak to have pressure drops.



  • #8
    ted1
    Registered Users, Registered Users 2 Posts: 23,656 ✭✭✭✭ted1


    are you bleeeding the rads or just repressuring the system?



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