I would like to ask about possibility two have two water tanks connected to one pump house. Example we have 158 000 gallons (600 cubic meters) water tank with pump. We want to protect new area for which tank according to NFPA 30 is 224 000 gallons (850 cubic meters). Pump house is good, changes are no needed.
Can we build new tank 66 000 gallons (250 cubic meters) and connect them together to achieve needed water supply? Is this allowed?
I will be grateful for help.