To keep Water tank

Sir Hum lajpat nagar mein Ground floor m rahte h humaara water tank top floor pr rakha huya tha kch time pahle paani ka flow km hone se paani uoer tuk nhi jaata tha tub humne aur 1st floor pr rhne waalo ne apne floor pr hi water tank rakh liya but Hume problem hoti thi phr kch time baad kyuki jo tank top floor pr rakha tha usemai paani nhi jaata tha vo tank jo third floor pr rahte h unhone yeh kahkr ki break ho gya h aur apka paani nhi jaata waha se hutta diya ab kch samay se hum log uper tank rakhna cahte h aur third floor owner hume rakhne nhi de rhe kaafi pateshan krte h bolte h pahle uper room bna kr do phr uper tank rakho jabki hum srf 1,,2 feet uncha base bna kr jase pahle tank rakha tha vase hi rakhna cahte h. Vo hume bolte h hume 8se10feet unchi deewar khadi kr ke phr lanter daal kr tub tank rakhna hoga vo rooms banana cahte h. Humara makaan 1989m bna h aur pahle hi kaafi purana h aur construction agr hoti h to jaan ka khatra h. Lakin vo hume tank k liye pareshan krke room bnaana cahte h. Pls Adviced ki kya hum water tank nhi rakh sakte kya hume 8 feet unchi deewar krke rakhna hoga kya hum neeche 1,2 feet pr nhi rakh sakte