Filter Rainwater From Roof

Filter the water before it enters the storage tank.

Filter rainwater from roof. 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. Such a filter will primarily serve to remove gross particulates and associated contaminants from the water before it enters the cistern. I live on a self sustaining sailboat with its roof adapted to catch rainwater and condensation. First you will want to consider a tank pre filter into your system.

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. Mineral solids collect as sediment at the bottom of storage tanks reducing tank storage capacity. Also petroleum hydrocarbons are present in roof water. New information is available about rainwater harvesting from composition roofs.

Rainwater captured from rooftops contains significant quantities of plant debris soil eroded roof materials and other solids that can clog pumps valves and pipes. 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. I have used a number of commercial charcoal ceramic uv light filters and processes to purify the water. Adding chlorine or iodine to water does not protect against chemicals and some parasites are very chlorine tolerant.

And this is when it is operating at its least efficient rate of purification at 32 degrees f. How to filter rainwater from a roof. Why is rain collecting illegal. Even though i live in a relatively pristine ocean environment the amount of contaminants in the air rain water are terryfying.

Fit a moving fine mesh filter before the pump. How to 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. 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. Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9. Rain barrels for example do not provide any type of disinfection or filtration.