Filter Rainwater From Roof

For a simple project like collecting rainwater for a koi pond small amounts of drinking water or gardening use a simple sand filtration system works fine.

Filter rainwater from roof.

How to filter rainwater from a roof. Even though i live in a relatively pristine ocean environment the amount of contaminants in the air rain water are terryfying. This entry was posted in rainwater collection and tagged water filter rainwater collection roof rainwater collection rainwater collection tank rainwater collection systems rainwater collection system rainwater collection berkey filter rainwater berkey rainwater rainwater collection on may 28 2009 by dan debaun dan. Adding chlorine or iodine to water does not protect against chemicals and some parasites are very chlorine tolerant.

First is making sure that larger objects such as leaves stay out of the water collection tank and this is done by using mesh filters. Why is rain collecting illegal. There are a few processes that filtering can and should take even if you are not intending on converting your rainwater into drinking water. Rain barrels for example do not provide any type of disinfection or filtration.

One possible design for a roof water filter was pictured in figure 6. Rainwater captured from rooftops contains significant quantities of plant debris soil eroded roof materials and other solids that can clog pumps valves and pipes. I live on a self sustaining sailboat with its roof adapted to catch rainwater and condensation. Mineral solids collect as sediment at the bottom of storage tanks reducing tank storage capacity.

Such a filter will primarily serve to remove gross particulates and associated contaminants from the water before it enters the cistern. Also petroleum hydrocarbons are present in roof water. Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9. While there are many on the market and several in our store a lot of the options available are designed for commercial and industrial applications and are not always cost effective or even efficient for residential scale systems while we used to use roofwasher filters made by water filtration company.

It can also serve to neutralize the acidic rainwater to some extent if limestone is used for the gravel and stone portions of the filter. If you need a full filtration system to completely replace the local utilities then consult a full system rainwater filtration company such as wisy or 3p teknik. Siphon off any floating particles. First you will want to consider a tank pre filter into your system.

New information is available about rainwater harvesting from composition roofs. I have used a number of commercial charcoal ceramic uv light filters and processes to purify the water. Filter the water before it enters the storage tank.