car wash

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guys please give me some suggestion, recommendation etc. on a car wash business. planning to have one, but the problem is i dont have any ideas on how to run a business like this. la jud ko idea kung unsay mga gamit then asa sad palitun ang mga gamit like shampoo, tire black etc. we all know nga naay daghan mapalit. pero what i mean is, kanang barato ra then nindot ug effect para sad dili mutagam ang mga costumers.
the reason why nag planu ko mag start ani nga business bisan la ayo ko knowledge. its because my present business is sand and gravel, then hauler sad ko. naa mi mga heavy equipment, sayang kung adto mi sa lain mag pa hugas. like sa dumptruck namu, everytime mag pahugas mi it cost 500 pesos. mao naka huna2x ko nga mag car wash. mao ask ko sa inyo help kung unsa aku una buhatun. kung ang area hisgutan, naa ko available space mga 600sq.m jud ni. so puede kaayo pang car wash. please help me guys.
thanks in advance

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please give some suggestion