Builders
Carpenters
Electricians
Flooring Specialists
Gardeners
Handymen
Heating Engineers
Painters & Decorators
Plasterers & Renderers
Plumbers
Roofers
Tilers
myFind Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
How it works
Ask a trade
Cost guides
Categories
Expert Trade Answers
"Since there are a variety of backflow prevention devices it really depends on the situation. These might take the form of an actual 'air gap' or a mechanical backflow prevention device such as a 'double-check' valve, which is required when installing a garden tap to prevent potential backflow of contaminated water into the water supply. The gap between the tap outlet on your kitchen sink and the spill-over level of the sink are designed to prevent backflow. The water regulations manual details all the situations and the required devices for each installation. There are numerous mechanical backflow devices and I would suggest consulting a qualified plumber or the water regulations manual itself when deciding on the type of backflow device required."
Answered on 12th Jun 2022 - Member since May 2022 -
report
"Backflow is caused by sudden water pressure drop or unwanted reversal of water flow instead of pushing water out of our taps, it is sucked back in"
Answered on 10th May 2022 - Member since Sep 2021 -
report
Related questions
Search other questions
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
Other categories
- Aerial Specialists
- Architects
- Bathroom Specialists
- Bricklayers
- Builders
- Joiners
- Cleaners
- Drainage Specialists
- Driveway Specialists
- Electricians
- Flooring Specialists
- Gardeners
- Handymen
- Heating Engineers
- Kitchen Fitters
- Locksmiths
- Loft Specialists
- Metalworkers
- Painters & Decorators
- Pest Controllers
- Plasterers
- Plumbers
- Removal Companies
- Roofers
- Security Specialists
- Specialists
- Stoneworkers
- Swimming Pool Specialists
- Tilers
- Traditional Craftsman
- Tree Surgeons
- Window Specialists
See all questions
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] }}
Report Content
{{ first(reportForm.errors) }}
Thank you
Your report has been created and will be investigated shortly.
Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year