Exactly how you set the system up will depend on how much rainwater you need and what you want to use it for.
Simple roof water collection systems.
Pipe threads so you can access water from your rain barrel.
To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
The barn has a standard gabled metal roof measuring 13 wide x 32 long on each side.
The system collects rain water from a simple adapter made to fit our existing barn s gutter.
Our rain water collection system how it works.
1 inch x inch coupling 1 inch x inch bushing 1 inch pipe thread with a 1 inch hose adapter 1 inch lock nut 4 metal washers 1 roll teflon thread tape 1 tube silicon caulk 1 s shaped.
We distinguish between land based and roof based rainwater collection systems.
The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel.
Obviously if only one side of.
A very simple roof wash system can be made out of a 6 or 8 inch vertical pvc or polyethylene pipe installed beneath the gutter with an inlet just above each downspout to the cistern.
This is very effective and collects water far more quickly than most systems.
Free standing water tanks are affordable easy to manipulate and do not require any ground work.
Through a simple in line diverter the rainwater is carried to our main capture tank.
The medium sized rain water collection system.
Rainwater collection systems can be as simple as collecting rain in a rain barrel or as elaborate as harvesting rainwater into large cisterns to supply your entire household demand.
Rainwater harvest calculator length.
Rainwater is collected from your roof and stored in a tank until you need it.
Butterfly roof system with slanted roofs on two sides water slides into the barrel travelling through the ridges on the roof and streamlined into the center area for collection.
It requires only a garbage can and a few simple hand tools.
Free standing and underground water tanks.
At least in case of the simple systems possibly suitable for your tiny houses or small cabins.
More details at pinterest.
This rain barrel is very simple to make.
In other words regardless of the pitch of the roof the effective collection surface is the area covered by collection surface length times width of the roof from eave to eave and front to rear.