2. Overhead tank design and patterns of water distribution in Alacrity's Complexes

Water usage for our daily needs falls into three categories and the minimum quality required for each category varies: Usage Appx. qty. Min. Quality required 1. Cooking & Drinking 15 L Must be potable 2. Flushing of Toilets 45 L Can be brackish 3.Bathing, washing of clothes, vessels, floors etc.  75 L Water with moderate amount of dissolved salts The water sources on which a complex depends may yield water of any or all of these three qualities. Each over head storage tank is therefore provided with three equal sized compartments (each having a capacity of ca. 3 kL) to enable it to receive, store and supply water of all three qualities. The storage and distribution pattern can also be altered to suit different situations by changing the settings of only one valve. Distribution patterns possible Situation 1: The complex has three sources of water, yielding the three qualities described above and all three sources need to be tapped. Keep valve 3 closed and all others open. Fill the three compartments with the three qualities of water. Situation 2: Limited quantity of potable water available. Abundant availability of water with moderate amount of dissolved salts. Keep valve 3 closed and all others open . Fill potable water in compartment C and compartments A and B with the other quality. Situation 3: Reasonable quantities of both potable water and water with moderate amount of dissolved salts available. Keep all valves open. Fill compartment B and C with potable water and compartment A with the other quality. Situation 4: Reasonable quantities of potable water and brackish water available. Keep all valves open. Fill compartment B and C with potable water and compartment A with brackish water. Situation 5: Abundant availability of potable water. Keep all valves open. Fill potable water in all compartments.