Dear Sir, We want hardness to be removed from the water supplied via tank to our vacuum pump. Due to hardness, scaling develops inside the pump after few month of use. The tank has a capacity of 500 liter. Which requires filling after every three days. Please suggest your suitable product for removing hardness in water. We would like to inform you that hardness is approximately 370. 联系方式Co:Techno Cast Add:(ho)66/6, Shastri Nagar, Meerut, Muzaffarnagar, Uttar Pardesh,India Tel:91-131-2652553 Fax:91-131-2450185 Email:techno_cast@hotmail.com联系人：Sanjeev Goel国家：India产品类别机械五金techno_cast@hotmail.com
