Original Water Supply Techniques in Rome
Original Water Supply Techniques in Rome With the building of the 1st raised aqueduct in Rome, the Aqua Anio Vetus in 273 BC, individuals who lived on the city’s hills no longer had to depend entirely on naturally-occurring spring water for their needs. If citizens residing at higher elevations did not have access to springs or the aqueduct, they’d have to depend on the other existing techniques of the day, cisterns that compiled rainwater from the sky and subterranean wells that received the water from below ground. From the early sixteenth century, water was routed to Pincian Hill by using the subterranean channel of Acqua Vergine. Throughout the time of its original building and construction, pozzi (or manholes) were placed at set intervals along the aqueduct’s channel.
The One Cleaning Solution to NEVER Use On Your Large Garden Fountains

Every three-four months, garden fountains should undergo a serious cleaning. The initial step is to empty out all the water. Then use a soft towel and mild cleanser to scrub the inside. Feel free to use a toothbrush if helpful for any tiny crevasses. Do not leave any soap deposit inside or on the fountain.
Some organisms and calcium deposits may get inside the pump, so it is best to take it apart and clean it completely. To make it less strenuous, soak it in vinegar for several hours before cleaning. Mineral or rain water, versus tap water, is ideal in order to eliminate any build-up of chemicals inside the pump.
One final recommendation for keeping your fountain in top working order is to check the water level every day and make sure it is full. Low water levels can ruin the pump - and you don't want that!