A landlord's three-page, handwritten instructions on how to take a shower in their Adelaide rental unit has stunned potential tenants.

A member of a rental property group took to Reddit this week to share the listing for a unit near the inner-western suburb of Mile End.

'CCTV camera in the kitchen, bathroom scary and the weirdest note,' they wrote alongside photos of the $280-a-week listing.

Despite the surveillance camera in the kitchen, it was the 'shower instructions' that captured the attention of renters.

'Please stand your back to tile walls/your face directly to doors – so water NOT drop to outside/floor,' one instruction said.