Legionella, should I be worried?

[mooey]

I work in a hospital and this is a high ridk area we have one guy that flushes taps all day every day.

 

[Reg Man]

I have air source heat pump heating much lower temperatures, so every Friday night the hot water gets boosted on the timer to reduce the legionella risk.

 

[Ermintrude]

I use crystal meth on all outlets once a month. Nothing left

 

[Reg Man]

Fatality rate is between 5-30% so why take the risk, to save money and having insufficient hot water. If you are worried about scolding, fit blending valves.

 

[Ermintrude]

And use copper pipe, bleach shower heads & hoses . Blend at point of use and get rid of tanks

 

[Dotty]

I use crystal meth on all outlets once a month. Nothing left

Ahhhhhhh!

THAT explains why you do what you do in your mother-in-laws wetroom. ....

The lack of control over your bodily functions should've been a giveaway.

 

[DrainMedic]

Is it a possibility for you to install a longer immersion element to heat more of the cylinder?

Apparently, legionella is dead in 30 mins at 60 deg, and in 2 mins at 65 deg. With this in mind, why not crank your cylinder temperature up and install a tempering valve on the outlet to reduce scalding risk.

Im not quite sure why, but mines set at 'steam' and has been for years. Thankfully, we've all got the reaction time of a traffic warden, so it's never been a problem.

 

[SMB]

Is it a possibility for you to install a longer immersion element to heat more of the cylinder?

Apparently, legionella is dead in 30 mins at 60 deg, and in 2 mins at 65 deg. With this in mind, why not crank your cylinder temperature up and install a tempering valve on the outlet to reduce scalding risk.

Im not quite sure why, but mines set at 'steam' and has been for years. Thankfully, we've all got the reaction time of a traffic warden, so it's never been a problem.

Can't fit a longer element, but will change the cylinder that has the element at the bottom.

Many thanks to all for your help.

SMB

 

[DrainMedic]

It would be cheaper to install a boss at the bottom for another element. I'll work out how to put a link up and do it in a minute.

 

[DrainMedic]

Toolstation.com part number 38614 (roughly £12)

Thats a mechanical immersion boss, where you drill a hole in the cylinder and bolt the thing in place.
There's another version, for soldering into place, depending on how good your soldering is. Either way, it would be advisable to remove the cylinder and drill/fix the boss outside where you can fill it afterwards and check for leaks etc without flooding the place.
Someone on here posted a pic a while ago of 6 immersions mounted in a cylinder, presumably using something similar to the above product. Don't go that mad, but an extra one will do no harm. You could always keep the original in there or even remove it and blank it off.

It's a nice Sunday project for you!

All the best

Dave

edit: I forgot to mention. If you do end up adding an immersion, don't drill into the cylinder where it might foul the coil inside.