Ruwan Jaison Water Tap ko Jayson Water Tap (wanda kuma aka sani da Waste Ba Ruwa Tap ) famfo ce ta rufewa da kanta wacce JP Subramony Iyer ta kirkira a farkon karni na 20 a Travancore, Kudancin Indiya. Wadannan famfo sun kasance abin da aka saba gani a kan tituna a zamanin da Travancore, wani yanki na jihar Kerala na zamani a Kudancin Indiya . Kuma Suna da shahara sosai a ko'ina cikin yankin Indiya kuma har yanzu ana iya samun su a yawancin tashoshin jirgin ƙasa na gargajiya da Layin Jirgin Indiya ke sarrafawa. Fam ɗin ruwan Jaison kyakkyawan misali ne na ƙirƙira tushen ciyawa na kasuwanci daga Indiya ta zamani, wanda ya wuce abin da ake kira Jugaad ko kuma hack life . Samuwarta wani aiki ne na tattalin arziki wanda ya samar da wadata kuma ya taimaka wajen magance matsalar barnatar da ruwa a cikin famfunan ruwan jama'a wanda hakan ya kawo fa'ida ga al'ummar ƙasar Indiya. JP Subramony Iyer, wanda ya ƙirƙira famfo, ya kasance mai ƙirƙira tushen ciyawa, jarumin farawa, ɗan kasuwan fasaha na duniya. Ya yi aiki a matsayin jami'in inshora a cikin tsohuwar jihar Travancore-Cochin .