+- Punaweb Forum (http://punaweb.org/forum)
+-- Forum: Punaweb Forums (http://punaweb.org/forum/forumdisplay.php?fid=3)
+--- Forum: Building in Puna (http://punaweb.org/forum/forumdisplay.php?fid=12)
+--- Thread: Installation of First Flush on catchment tank (/showthread.php?tid=3185)
Installation of First Flush on catchment tank - ef9 - 06-24-2007
I plan to install a First Flush on my catchment system.
The catchment system is all in place when the home was purchased. I have to cut a section of the existing piping to fit the "T" into place.
Is there a recommended method of cutting the existing PVC to insert the "T" section into place? I was afraid of getting PVC shavings into the catchment tank. Or is this okay and I just use a swimming pool vacuum to suck up the rubbish?
Thanks in advanced,
Stan
RE: Installation of First Flush on catchment tank - ericlp - 06-24-2007
I'm noticing that I am getting some coconut palm rubbish in my tank. If you don't mind, could you tell me where to get the first flush system and how much it cost?
Thanks!
Eric
RE: Installation of First Flush on catchment tank - ef9 - 06-24-2007
Hi Eric,
I'm sorry, I guess I should not have said: "First Flush System." This may mislead others to think that it is a system purchased from a vendor of some sorts.
I'm sure there are systems that can be bought, but it seems majority of people install a "T" section onto the existing PVC that goes between the gutter and the catchment tank.
When the rain comes down for the first time, the collected water will collect in the "T" section. This first collection will wash the roof and gutters with the dirt and leaves and have them fill the "T" section. There are several holes drilled at the end of this "T" section to allow a very slow drain of the first flushed water.
At the end of the "T" section, there is a removable plug to do routine maintenance and remove leaves and debris.
Eric, you can search the web for "first flush."
Stan
RE: Installation of First Flush on catchment tank - Les C - 06-24-2007
I think in some regions, this is referred to as a roof washer system. I may be wrong, though. There are also leaf catcher systems that can help divert leaves before they get into the tank. These are kind of new, not many, if any, on the Island. Waterworks has been looking into these.
Edited by - Les C on 06/24/2007 22:06:53
RE: Installation of First Flush on catchment tank - mella l - 06-25-2007
Eric here is a site that sells that type of system. Has pictures and I'm sure a home made one would work just as well.
http://www.rainharvesting.com.au/first_flush_water_diverters.asp
mella l
RE: Installation of First Flush on catchment tank - ef9 - 06-25-2007
When making your own first flush, how many holes do you drill near the end of the PVC to slowly drain the first flush?
How large do you drill these holes?
Stan
RE: Installation of First Flush on catchment tank - Beachboy - 06-26-2007
quote:
I think in some regions, this is referred to as a roof washer system. I may be wrong, though. There are also leaf catcher systems that can help divert leaves before they get into the tank. These are kind of new, not many, if any, on the Island. Waterworks has been looking into these.
Edited by - Les C on 06/24/2007 22:06:53
http://ersson.sustainabilitylane.com/rainwatr.htm
looks like it comes with a learning curve to Les!?
RE: Installation of First Flush on catchment tank - Beachboy - 06-26-2007
quote:
When making your own first flush, how many holes do you drill near the end of the PVC to slowly drain the first flush?
How large do you drill these holes?
Stan
http://www.saferain.com.au/harvesting.htm
maybe this will help?
Edited by - beachboy on 06/26/2007 09:56:17
RE: Installation of First Flush on catchment tank - Beachboy - 06-26-2007
quote:
quote:
When making your own first flush, how many holes do you drill near the end of the PVC to slowly drain the first flush?
How large do you drill these holes?
Stan
http://www.saferain.com.au/harvesting.htm
maybe this will help?
http://www.saferain.com.au/index.htm
Edited by - beachboy on 06/26/2007 09:56:17
RE: Installation of First Flush on catchment tank - Royall - 06-26-2007
Why not just put a net type laundry wash bag on the end of the discharge pipe? It will catch all the debris coming off the room and you only have to empty it once a month or so. Works great on our catchment.
Royall
What goes around comes around!