It is entirely adequate. And certainly not worth threatening strike action about.
This is what does the RMT no favours. Threatening a strike over (literally) microscopic issue, without any recourse to talks, or even (apparently) understanding what has happened.
Again with the anti union posting, the RMT first informed it's members on the 6th August of three Class 700s had been infected with the disease and 3 members of staff were as a result off work on sick leave having contracted the disease.
So to state that it was a issue that's so minor it doesn't deserve any attention by the union especially as the health of three members have been put at risk.
The RMT then went forward to TL and insisted that the trains involved were taken out of service with immediate effect after the outbreak was confirmed by Siemens and instructed its members under their employers work safe
procedure and/or Section 44 of the Employment Rights Act, 1996, if you feel you are placing yourself in a position of serious and imminent danger to refuse to work on those units.
Then on the 20th August, the RMT advised that as a further Class 700 had been discovered on the 9th August to have been infected with the disease that they were now in dispute with TL and were requesting TL:
• Demand an urgent Joint Safety Committee meeting be arranged to discuss the legionella contamination, the company response and its responsibilities under procedure agreement 2 and the associated codes of practice and regulations.
• Demand full disclosure, including live updates of the unit numbers of any units found to contain Legionella.
• Distribute the report from our Health and Safety Department to our Health and Safety Reps.
Nowhere has the RMT said they are instructing members to strike over it and the requests made by the RMT above are quite reasonable.
With the Class 700s if anyone isn't familiar with them you cannot lock the standard toilets out of service as they can be easily reopened with a screwdriver or t key and plenty of passengers have them on them whereas if you lock the accessible toilet out of use you cannot force it open if it's been locked shut.