If you are washing there, they will give you free detergent. There is also some you can buy.
The attendant have some for you if you didn't bring any
If you're not picky about detergent, the wonderful staff members will give you detergent.
To save money I suggest that you have your own detergent and bleach. But if not, there is a vending machine that has soaps and other products.
They have some you can purchase at the small vending machines and I'm sure the attendant has some as as well for sale.
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