Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
BWT jug filter with electronic indicator 2.6l (1.4l funnel) + 2 magnesium cartridges. Fully functional, BPA-free. TDS meter showed purification of tap water from 290mg/l to 155mg/l