Browse Forums Landscape & Garden Design Re: Dry System for rainwater capture 4Aug 25, 2009 6:19 am Quote: chemical will slowly leach through the soil over the months/years and then start leaking into the storm water piping that has been laid around the house. is thge pipe porous ? do you consider the risk high ? can uyou post some links here ? Re: Dry System for rainwater capture 6Aug 25, 2009 11:53 am It's not about the pipe being porous. It is because white ant/ termite insecticides are generally very highly water soluble. You wish to construct a system capturing runoff and that will mean that the insecticide residue will also be captured. It is inevitable. If you really want to do this, maybe look at a more efficient way of applying the insecticide and reducing the risk. Do it by having a network surrounding the home of subsurface irrigation pipe. (6mm should be fine.) have a few areas that slightly over lap each each other and section the system with each section having an inlet point. Maybe devise a way to dilute a white ant treatment and pump it into each section once or twice a year? That way it is going below the soil and being emitted into the soil every 30cm or so. This means less will be absorbed when surface run off occurs and less still if you line the surface run off catchment with pond liner. cover with rocks and away you go? Just something I chucked around in my head. Of course it would be flawed but put some more thought into it and you have a practical water efficient solution Re: Dry System for rainwater capture 7Aug 27, 2009 11:35 am The chemical being used is byfenthrin - its a plant (Chrysanthemum) based frouth generation pyrethroid. Fatal to insects but relatively harmless to mamals. The insectide spray will be against the soil touching the wall. The PVC piping will be about 600-700 away from the wall. All joins will be well sealed. Suburbia is where the developer bulldozes out the trees, then names the streets after them. Re: Dry System for rainwater capture 8Aug 28, 2009 1:44 am Remember that just because it is plant based doesn't make it all cool. Pyrethrum is a known carcinogenic and can never be made certified organic because of its toxicity. But people love to use it and feel good warm fuzzies using it because it is plant based and therefore it "must be safe". Yes Bifenthrin is less harmful than other Pyrethriods especially the semi nasty permetherin. However it is (crap now I can't recall if it more or less water soluble ) i am pretty sure it is more water soluble than permetherin and that means it won't stay in the soil as long. You might want to check that out though. It's awesome you are looking at this side of things though Re: Dry System for rainwater capture 9Aug 31, 2009 11:11 am Yes FuMan Chu, Byfenthrin is not carcinogenic or harmfull (to humans) and is not water soluble (Source: wikipaedia, as well as the pesticide company). I will be using this water only for the garden - NOT for human consumption , NOR for filling up the toilet cistern. Its a fourth generation pyrenthroid, derived from the Chrysanthemum family of plant. The 90mm PVC pipes are laid at a distance of around 400mm from the brick wall and are sealed with PVC cement. With a bit of luck - this should all hold down.... Suburbia is where the developer bulldozes out the trees, then names the streets after them. Re: Dry System for rainwater capture 10Aug 31, 2009 11:49 pm Get some piccies up of it if you can. It would be good to see Re: Dry System for rainwater capture 11Sep 11, 2009 9:25 am Fu Manchu Get some piccies up of it if you can. It would be good to see Thanks for your interest ! You might also wan to have a look at this post of mine: http://forum.homeone.com.au/viewtopic.php?f=1&t=23255 Suburbia is where the developer bulldozes out the trees, then names the streets after them. Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19517 It's possible but a soak well is usually much larger. Your 'soak well' only holds 424 litres when full. What is your soil type? Soak wells need sandy soils. 10 9009 DIY, Home Maintenance & Repair Ditto 3M Claw, expensive but best thing I've used to date. I put two of the 11kg ones in for a 12kg mirror on the wall, and its been great for 4 years now. 4 2143 |