Waters so what i need water that doesnt need to be treated for the powers for the garden i just develop a watering can of water that there are a few rules though first each house is limited to 2barrel is together they cant hold more than 110 gallons if you use it all you just wait until the rain refills them second you can only catch water that comes from your downspout and has to it has to be used on your property third at the barrels have to be sealed on top like this one theres a hol bottom of the planter areas in the extra water goes straight down and lastly you can only use rainwater outside for things like gardens and washing cars beaty thinks its a Pretty Simple way to save some water and simpson green i think if you got a garden if youve got plants anything like that that makes a lot of sense now if you want to go ahead and do this you will probably get about 1200 gallons of rainwater per year now rain barrels cost about 100 each and you can local Garden Centers that includes p