Wasee mmecheki hii articles ya : 3 Different Types Of Plumbing Systems mainly sewage, water, and drainage plumbing mi huona the best thing kuanza na kubuild nayo ni aka in a town hua ni sewage na drainage systems before the infrastructure ianze . Nairobi inaumia juu their drainage systems haiko poa daana Ndio hii link hapa https://danikaplumbing.com/... #plumbing