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.
As we specialists in plumbing, it's advised to add an extension plumbing to our tanks in order to prevent further obstacles and damages due to the force applied to the tank when fetching water directly. It's good for both plastic and metal tanks no matter the volume