For some roofs it may be necessary to calculate.
Saving rainwater off roof to a pond in oregon.
Rainwater harvesting is legal in oregon but may only be collected from a catchment system on rooftop surfaces.
I would urge you to get your roof runoff tested to see if it is actually poisonous to fish.
However collecting rainwater for landscaping purposes would require a license if a rain capture system is being used to create a water supply swimming pool hot tub fountains ponds a landscaper must be authorized to enter a prime contract for that system.
Collecting rain water whether you use a collection barrel or utilize the roof as a source and piping it into the pond is not an uncommon occurrence.
To determine how much rainwater you can expect to collect you need to calculate your roof footprint or rainwater catchment area.
These ponds are filled only by rain and run off from my roof.
Again let s look at how much can be obtained from the roof.
While it may sound like a good idea and you re saving on water.
No permit from the state board is necessary.
I have had rain barrels a long time used asphalt shingled roof run off water i ve collected to top off my ornamental fish ponds.
Since you will have a long term need for pond water a rain water harvest system is in order.
The plants suck off the extra nutrients and they prevent blooms of algae by blocking too much sunlight.
150m2 x 600mm 90000l taking 20 off again we reach a total of 72000l rainwater collected in the year.
Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water.
To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above.
Therefore anyone who wants to store any type of water on their property must first obtain a permit from state water managers.
The roof footprint is equal to the exterior square footage of the roof surface around the gutter line.
In oregon only roof surfaces may be used for harvesting rainwater.
Most universities have an agriculture department with a soil and water test lab.
I ve seen no ill effects in the fish as a result of doing this and i ve been doing it for years.
The state gives some approval for alternate methods of construction of rainwater harvesting systems but legal advice should be sought before attempting to construct any system on private property.
Rain barrel supplies list.
Water consumption may not be half of what the family of 4 use but it will be close so we will assume 250l day for the household.
That live in the ponds.
As for algae i ve never had a problem with it.
Rainwater harvesting coming from your roof is fine in california.
When you look at the numbers it s surprising how much water you can collect every time it rains.
I have a number of types of water plants frogs goldfish various insects etc.
Harrington said he applied for three permits to legally house reservoirs for storm and snow water runoff on his property.
