Bath water for plants?

[MushroomTree]

In a bid to keep bills down I was thinking of using bath water to water my plants but then I started thinking about the bubble bath etc and wondered if it would damage my plants.

I've got a mixed of edible and non-edible plants in pots on my patio.

Do I need to do anything to the water before using it? Or just pour it on? Or don't use it at all?

I live in a rented first floor flat so not able to have a water butt or redirect plumbing to a proper grey water system.

I would use it on the non edible plants depending on what sort of bubble bath you use ..
I have a friend who got very seriously ill from eating garden veg that she had watered with bath/shower water.

We've looked at it when we rebuilt my GPs house, and IIRC, it shouldn't be used directly.

I did this all the summer last year and it was fine.

the question comes up regularly on gqt and the consensus was that it's ok for bathwater but water from dishwasher/washing machine is not suitable as those detergents are too harsh.

Mixed responses here which is what I got when I googled. Maybe I'll try it on the non edibles and see what happens.

Just seems ridiculous to let all that water go down the drain. I can't imagine that rain water is the cleanest .