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#1 Posted : 16 March 2009 11:31:00(UTC)
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Posted By Mike the bike
Good morning all, my first post on this forum.

I work for a large local authority and have hit on a bit of a dilemma; I wonder if any of you have tackled this before and could share your views.

With a couple of thousand public buildings to maintain, we currently adhere to L8's requirements regarding hot & cold water temperature checks (L8, Table 3, run sentinel taps up to 2 mins (cold) & up to 1 min (hot)).
This means several hundred gallons of water is run down the drains every month and our environmental advisers are not very happy! I must say that I have some sympathy with them.

Given the relative legal status of L8, do any of you have an opinion on resolving this dilemma?

Many thanks in advance.
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#2 Posted : 16 March 2009 11:46:00(UTC)
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Posted By Bob Youel

Human's first [i.e. don't put humans at unnecessary risk!] other areas [environmental etc]second! That's the way it is and has to be

An example is Fire [human safety].V. Security [property safety] where the security bods have to comply with fire law

Relook at your systems to see if less water can be wasted
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#3 Posted : 16 March 2009 11:55:00(UTC)
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Posted By David Bannister
I agree. The environmentalists argument is that they are looking after everybody whilst H&S is about individuals. Whilst this is often true, water system management is about preventing many getting serious disease.
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#4 Posted : 16 March 2009 13:03:00(UTC)
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Posted By Rodger Alan Ker
Allegedly wasting water is a bit of a red herring.

Water that goes down any drain, ultimately is recycled and reused.

(I was once told that we are drinking the same water that the dinosaurs drank (probably accounts for the taste!)).

Agree with the others entirely, humans first, environment a very poor second priority.

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#5 Posted : 16 March 2009 13:25:00(UTC)
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Posted By akm
In defence of the environmentalists, they are only trying to follow their mantra of 'reduce, reuse, recycle'. Wasting water requires energy to treat it so it can go in the river, and a load more energy to turn it back into drinking water.

I think Mike's right in his sympathy and doesn't believe for a second that they are wanting to put people at risk - what they are probably asking is 'does the activity need to be done?' ANS: yes, its a process requirement as already stated and defined by L8 The next question would be 'are all the taps used or need to be available?'. If not, why not decommission them?
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#6 Posted : 16 March 2009 13:45:00(UTC)
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Posted By Gerry Colverson
Mike

We have the same dilemma, we are a large local authority and have flushing regimes etc. We do not have flushing regimes in every building as many buildings have no equipment that will produce aerosol. For these we note them on our property database and focus on the higher risk ones. These we identify by risk assessment process and we can further prioritise places like older person residential properties and special schools as having people with additional vulnerability. These types of building are often on test regimes as well.

By risk assessment we are able to minimise the amount of flushing needed, but if there is a risk of legionella, there is no option.

regards

Gerry

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#7 Posted : 16 March 2009 14:04:00(UTC)
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Posted By Colin Reeves
In the long term you should look to re-engineer - putting in ring mains with very short feeds to taps reduces the amount you need to flush. Removal of any dead legs, or any little used legs (are they actually still needed?).

However, in the meantime, humans 1, environment 0 as other have said!

Colin
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#8 Posted : 16 March 2009 14:35:00(UTC)
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Posted By Warsteiner
Not wanting to throw stones in the general direction of our lovely local authorities and their inflexible knee jerk reactions and rules, etc, etc. But, is this one of those requirements to run all taps and flush every toilet, including those that are used "day in day out", regardless of thought and consideration to the likelihood of actual risk?

If yes.

1. Get the tree huggers on side (qualified tree hugger meself), and re-assess the requirement. I.e if it is used every weekday-don't bother, leave well alone. Just make sure your audit trail is in place.

2. Remove dead ends where there may actually be a risk or purge them once a month (fire hoses for example).

Water maybe recycleable. What costs is the purification process and electricity used to pump the water to your taps.

Regards Wobbly
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#9 Posted : 16 March 2009 14:48:00(UTC)
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Posted By stephen d clarke
Hi,
When I worked for an LA the external contactors we used went round monthly as I remember to all our sites measuring water temperature from sink taps as part of the legionella control, every premise from a small portacabin public library with one small sink. I wasn't involved in setting up the contract but I did query it on occassions. I would have thought it was OTT as no aerosol no significant legionella risk especialy for sinks in regular use.
Steve
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#10 Posted : 16 March 2009 15:24:00(UTC)
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Posted By Mike the bike
OK one and all. Thanks very much for your responses. Somewhere along the line it seems the thread lost its way and wandered onto flushing water systems; this was meant to be about sampling from sentinal taps for temperature. However, all your responses are very useful.

Now I am a member of the forum I'll try to reciprocate and put in my 10p worth where I can.

Cheers all, Mike.
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#11 Posted : 16 March 2009 15:30:00(UTC)
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Posted By A Campbell
Mike,

have you discussed and will likely get backing for you procedure from your environmental health team?
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#12 Posted : 16 March 2009 16:55:00(UTC)
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Posted By Mike the bike
Unfortunately we are a county council and don't have our own EHOs. There are several district and borough councils in the county who do, but our buildings are on all of their various 'manors' and it is likely that I would get varying views from them.

It's a useful thought though, and thanks very much for it. Cheers, Mike.
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#13 Posted : 16 March 2009 19:26:00(UTC)
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Posted By Phil Rose
Mike

I pretty much agree with much of what has been said above.

I do wonder though if you might tackle it in another way. If you can demonstrate a pattern of 'stability' of water temperatures at sentinel outlets then I would have thought that it would not be unreasonable to carry out the checks less frequently. If the checks subsequently show instability then increase the frequency. I believe that a similar method is used by health authorities when checking TCVs.

Phil
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#14 Posted : 17 March 2009 07:17:00(UTC)
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Posted By Phil Rose
TCV above should have been TMV

Phil
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#15 Posted : 19 May 2009 11:20:00(UTC)
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Posted By Ninapalmer
Hi there Mike,

I certainly have a very positive way of resolving this issue, my company have now released on to the market a Remote Monitoring System to be used for the purpose of monitoring and therefore controlling the bacteria associated with ACOP L8.

Much more scientific and certainly cost effective than the manual system we all have to use currently - which is a pain if you are also dealing with domestic multi-residence properties - we all know the joys of trying to get access!!

Feel free to give me a call on 01992 589444 or email me nina@city-water.com - I am already working with Welwyn and Hatfield Council - we are just completing the equipment installation of the first batch - a very exciting time for all.

Thanks

Nina

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#16 Posted : 19 May 2009 11:24:00(UTC)
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Posted By Ninapalmer
Hi there Mike,

I certainly have a very positive way of resolving this issue, my company have now released on to the market a Remote Monitoring System to be used for the purpose of monitoring and therefore controlling the bacteria associated with ACOP L8.

Much more scientific and certainly cost effective than the manual system we all have to use currently - which is a pain if you are also dealing with domestic multi-residence properties - we all know the joys of trying to get access!!

Feel free to give me a call on 01992 589444 or email me nina@city-water.com - I am already working with Welwyn and Hatfield Council - we are just completing the equipment installation of the first batch - a very exciting time for all.

Thanks

Nina

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