[GB Window Cleaning]

makes you wonder about hot water systems eh

yea it does doesnt it... they wont grow past 70c (according to wikipeadia)

[matthewprice]

he did tell me what he used but cant remember what he called it ,i will ask him and let you know

[GB Window Cleaning]

he did tell me what he used but cant remember what he called it ,i will ask him and let you know

thanks mathew

[matthewprice]

just phoned him ,use granular hsch  (chlorine).high strength calcium hypochlorite.
80 grames per 1000l leave for 24 hours empty fill with clean water leave for 30 mins all done

[GB Window Cleaning]

just phoned him ,use granular hsch  (chlorine).high strength calcium hypochlorite.
80 grames per 1000l leave for 24 hours empty fill with clean water leave for 30 mins all done

thank for that mate.... when you say "80 grames per 1000l leave for 24 hours empty fill with clean water leave for 30 mins all done"

the part where you say at the end "fill with clean water leave for 30 mins"...then what after the 30 mins? i dont get it!
surley after you fill it with clean water its ready for work and that it?!?! i i missed a trick here? 

[Dave Willis]

makes you wonder about hot water systems eh

Most hot water systems would be on demand ie cold water feed heated quickly when required. Maybe the guys using immersion elements might be more at risk? Having said that I believe some companies give the option of recirculating hot water through the tank.

[matthewprice]

leave for 30 mins is to rinse the tank you would dump this as well tap water would be fine for this

[Dave66]

makes you wonder about hot water systems eh

Most hot water systems would be on demand ie cold water feed heated quickly when required. Maybe the guys using immersion elements might be more at risk? Having said that I believe some companies give the option of recirculating hot water through the tank.

ours circulates into the tank and warm water sits there everyday... oh dear 

[niceandclean]

makes you wonder about hot water systems eh

Most hot water systems would be on demand ie cold water feed heated quickly when required. Maybe the guys using immersion elements might be more at risk? Having said that I believe some companies give the option of recirculating hot water through the tank.

I had the option of recycling hot water into the tank when i had ours fitted, but was told by (I think at the time) Ionics when i was researching, that they wouldn't advise and fit that option due to the risks of legionnaires. That was 4 years ago.

[Splash 4 Cash]

high strength calcium hypochlorite.

This is the chlorine that one uses to sterilise swimming pool water,which you can get from a pool shop and must be de-solved in a bucket of water as it could sink to the bottom of your tank. |After 24 hours most of the chlorine will evaporate and you will need to flush the tank and fill with water and flush out again. WHEN FILLING WITH PURE YOU WILL NEED TO TAKE A SAMPLE FROM YOUR TANK AND CHECK ITS tds. This process will not last as the new batch of water could contaminate again soon after the flushing a U V lite would be a better option if its a static tank or just hung in you van tank on week ends.
 For me I will not do any as the chances are very slip.I will be more careful when driving as my chances are a lot more risky in the street.
The case in Scotland there were a lot more than meets the eye as the water was heated and running through a cooling tower which would atomise the water.

[GB Window Cleaning]

leave for 30 mins is to rinse the tank you would dump this as well tap water would be fine for this

oohhh i see matt!! silly me. thanks for that mate, your idea seems the most appealing to me at the moment

george

[GB Window Cleaning]

high strength calcium hypochlorite.

This is the chlorine that one uses to sterilise swimming pool water,which you can get from a pool shop and must be de-solved in a bucket of water as it could sink to the bottom of your tank. |After 24 hours most of the chlorine will evaporate and you will need to flush the tank and fill with water and flush out again. WHEN FILLING WITH PURE YOU WILL NEED TO TAKE A SAMPLE FROM YOUR TANK AND CHECK ITS tds. This process will not last as the new batch of water could contaminate again soon after the flushing a U V lite would be a better option if its a static tank or just hung in you van tank on week ends.
 For me I will not do any as the chances are very slip.I will be more careful when driving as my chances are a lot more risky in the street.
The case in Scotland there were a lot more than meets the eye as the water was heated and running through a cooling tower which would atomise the water.

 

thanks for that very insightfull!

[GB Window Cleaning]

here is an official goverment veiw!......

http://www.hse.gov.uk/healthservices/legionella.htm

[paulben]

Dont forget Legionaires can develope in windscreen washer bottle if you just use water . Now we are all doomed how many people just top up with tap water .

[GB Window Cleaning]

so to conclude this topic... is anyone actually bothered about this, i mean am i worrying about not a lot of risk? bearing in mind i very very rarley let any water sit for more than couple of days

[Perfect Windows]

Well, for about thirty quid you can get enough chemicals to clean out your entire system once a month for five years.

So, for anyone using an immersion, I'd say it was definitely worth it - if you get it wrong you could kill a customer.

For anyone else, once a month through the summer might be worth it.  A few minutes of actual work and a bit of messing with a tank of water.

I'm going to add it to what I do (I'm cold, so summer only) but I suspect most won't.

Vin

[GB Window Cleaning]

Well, for about thirty quid you can get enough chemicals to clean out your entire system once a month for five years.

So, for anyone using an immersion, I'd say it was definitely worth it - if you get it wrong you could kill a customer.

For anyone else, once a month through the summer might be worth it.  A few minutes of actual work and a bit of messing with a tank of water.

I'm going to add it to what I do (I'm cold, so summer only) but I suspect most won't.

Vin

ok vin im on your side with this one, after all prevention is better than a cure or in this case a manslaughter charge!

so me and mate... what are you gonna do? im all hears mate! what chemicals and method etc? 

george

[GB Window Cleaning]

vin... just to add im also cold so think i will do once a month just in summer too!

also will you be testing for legionaires as well as cleaning the tank?

and... what about the pipe work to and from the pump and or di vessel etc?

oh one more thing ( in a columbo voice) what about the water in an ro's prefilter etc?

thankyou

george

[Perfect Windows]

I'm going to pop to a pool place near me and buy Chlorine shock granules - they are calcium hypochlorite.

Empty IBC (needs it anyway as it's not been emptied for a year).

On a Thursday evening when the van tank's full, bung 80g of the powder into a bucket and fill with pure.  Put into IBC.  Fill to brim with pure.  Leave for 12h.

Then transfer using normal pump etc into van tank (now empty after Friday cleans).  Leave.  I might add another 40g into the tank befor loading it up, but I'm not sure; that's in case the chlorine has all been used in the IBC - you need free chlorine that hasn't reacted.  Should clear the transfer pump and hose (I can make sure the hose remains full of the solution as I have a stoppable nozzle on it).

Run the tankful out of the van via the reel hoses.

Flush out the IBC and tank with pure.

Fill IBC with pure.

Hopefully that'll do it.

Testing: every site I've looked at says don't bother; there'll be legionella in almost every sample so you won't find anything out.

At the very least I'm doing something about it...

Vin

[GB Window Cleaning]

thanks alot for that info vin i will have to read that all again later to properly analyse what your doing and see how a can use your methods for my set up, which is just a van tank i have no ibc static to worry about yo see!

okay seems like testing is not needed then!
and yeah at least were doing something abaout it mate i agree with you!

speak soon mate and thanks again!

george