Formal — to staff
Hotel · Amenities
You
この洗濯機って、洗剤は自動で入りますか？それとも自分で買いますか？
このせんたくきって、せんざいはじどうではいりますか？それともじぶんでかいますか？
Does this washing machine dispense detergent automatically, or do I need to buy my own?
Romaji: Kono sentakuki tte, senzai wa jido de hairimasu ka? Soretomo jibun de kaimasu ka? / Reply Romaji: Sochira wa jido tonyu desu node, senzai wa irenakute daijobu desu yo.
Reply
そちらは自動投入ですので、洗剤は入れなくて大丈夫ですよ。
そちらはじどうとうにゅうですので、せんざいはいれなくてだいじょうぶですよ。
That one automatically dispenses detergent, so you do not need to put any in.
Gesture & etiquette
Show a picture of the laundry room or point in the direction of the laundry facility while talking to the receptionist.
Do not put your own laundry detergent into a machine that has an automatic dispenser, as it can cause excessive foaming and break the machine.