Where to get Epsom Salt ?

[John]

@John

I did foam roller,stretch then had a shower to clean up (2-3 mins?) and let that water run in the bath then topped it off with cold only to just above thigh level and sat in it for 20 minutes.

as a follow up I have done this quite a few times since, each time following on a HI day (speed & weights) and have found it to work really well.