Compression stop ends

[Agile]

The water in a dead leg pretty much stays there!

Its contrary to the Water Regs to have any dead legs on a mains water supply pipe. On asking how long a dead leg was OK on my course the answer was "none, but perhaps up to 300mm if it cannot be removed".

In this case it seems that this dead leg is not directly fed by mains water so it could be argued that the Water Regs may not apply.

The difference between Dan or Hans fitting a compression stop end and a DIYer is that they know by experience just how tight they should be made.

Tony

 

[mcmoby69]

In the water systems in most buildings, primary colonisation by bacteria can take place when cold water storage tanks are contaminated from an exterior source, such as birds, insects and organic substances falling into the water. All cold water storage tanks should therefore be fitted with robust close-fitting lids, and insect screens should be fitted to overflow pipes.

In order to prevent heat take-up, particularly in the summer, cold water storage tanks should be insulated so that cold water remains below the 20°C threshold of the critical temperature range. Cold water storage tanks with little through-put will tend to stagnate and encourage the growth of all types of bacteria. Once a system has become contaminated, the only answer may be to clean and chlorinate. The best management system is to ensure that the water temperature does not enter the critical range.

Water systems - cold water pipes

Like cold water storage tanks, cold water pipes can take up heat from their surroundings. This may not just be a seasonal phenomenon in premises that are centrally heated. The best management practice is to insulate cold water pipes to reduce heat take up so that temperatures do not enter the critical range. In addition, stagnation can occur in long or little-used pipe runs and organic materials in jointing compounds can provide the nourishment for bacteriological growth. Back-siphoning, for instance from an outside tap during a loss of water pressure, can also introduce organic material into a cold water system. Where all parts of the cold water system in a building are directly from the mains, there is little risk of legionella establishing itself.

quote from
http://www.bsee.co.uk/news/archives...ging_the_risk_from_Legionnaires_disease_.html

now did you say you DIDNT have any public liability?

 

[ashill]

Yup. No public liabilty. The guy knows Im just a "handy man" so to speak. Its written in emails between us. Ive also told him about the dead legs and lid on water tank so upto him if he gets this sorted. this is also written in email.

 

[Agile]

Even professional handymen have public liability insurance!

The owner is a layman and not expected to have professional knowledge about water supplies or pipework.

A professional is expected to have that knowledge and has a duty of care to advise an owner of potential hazards and non compliant installations.

Thames Water, on my Water Regs course, asked us to report any infringements of the regulations to their hotline!

Tony