hot water smell

all my hot water in taps when i turn on any tap it give off an unpleasant smell, this is throughtout the whole house and only hot water. i have a megaflo and system boiler. what is the problem and how can it be resolved?

Asked by Saif on 27th Apr 2021
Expert Trade Answers
"Hi, it seems that the system you have in place is probably feed from a tank. Usually on older systems these were galvanised steel with a cathodic anode inside to stop the water rusting the tank this could be the issue or it could be water is stood to long heating and cooling creating chemicals.

Does the water smell like sulphur (rotten egg )? If so it’s more then likely could be the issue.

Ph plumbing and electrical"
Answered on 27th Apr 2021 - Member since Feb 2020 - report
"Quite possible you have a split in heating coil in cylinder causing heating water to get into hot supplies, or you have a dead leg in hot water pipe somewhere with stagnant water"
Answered on 20th May 2021 - Member since Apr 2021 - report
"Looking at the responses so far you have clearly described you have a megaflo system which is an unvented pressurized unit and would not include any older components such as a header tank. The question i would ask is this, was the megaflow cylinder put in after an older system removed? If so its likely the pipe work had not been fully flushed out, resulting in lining of residue from the old system. If the system is completely brand new, this is likely to be an issue with the temperature in the cylinder not being set at the right temperature causing lines that are not normally used commonly to cause bacteria growth in the lining of the copper or plastic pipe work. Our advice would to fully flush the system with a biocide chemical which would need to be completed by a professional, this then would require a litmus test to check PH scale of the water passing through the cylinder. Bacteria will not attach to the inside of a megaflo cylinder, but will through the copper network if not flushed correctly at time of install, plus the temperature settings."
Answered on 11th May 2021 - Member since May 2021 - report
"Bacterial growth in either the cold water storage tank or the cylinder. Stored hot water needs to be kept at a temperature above Sixty degrees."
Answered on 27th Apr 2021 - Member since Oct 2020 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year