hi this is bill from rainwater harvesting group and i'm here at prospect park in brooklyn new york we have a rainwater harvesting project that i'd like to show you let's take a look hi i'm bill from rainwater harvesting group outdoor living expert and we're here in brooklyn at our new rainwater harvesting project we're in a very unique part of brooklyn this is right by prospect park it's sort of central brooklyn and this house and neighborhood is actually very unique there's all city streets literally a block away from where we are right now but the rest of the yard it's both over at a half acre of just Woody's gardens with a path that's actually pond in the back little play house and this homeowner purchases house or sort of run down and now they're renovating it it's in a community where there are there are historical houses and they have to go be4 the Historical Society in order to make their changes right now the subway is actually passing through right through the rear yard so this project came about because there well that operated the sprinkler system stopped working and she wanted another way to irrigate the gardens without using city water and so she gave us a call and we we talked on the phone for a while and we decided that it would be best to meet and walk the grounds and kind of figure out what we wanted to do so we talked about this rainwater harvesting system and ultimately what we ended up with is a system that is connected to four downspouts so about three quarters of the roof water is actually coming into our system it enters in through a pre-filter that's where the leaders dump the water into a a container that has a screen and it screens out any twigs small debris and it sends out water down to our thousand gallon reservoir the rest of the area is we collect water in this thousand square foot permeable paver patio this permeable paver patio has about a foot of three-quarter-inch bluestone gravel with lots of void space in there then there's an inch of number 8 which is quarter inch crushed stone and then we are using Tekel block victoria permeable pavers on top and then the voids in between the pavers will be filled with that number eight stone as well so when rain actually falls onto this patio it'll sink through the joint space go into the blue stone and there's a liner underneath this entire patio the liner collects the water and it's all pitched towards our thousand gallon reservoir which is right over here our water feature is a bubbling rock when we're all done there'll be a curve seat wall around here that bubbling rock will aerate the water clean it it'll go through the through the gravel and really kind of clear out the impurities and then that pump is hooked up to a high pressure booster pump which will operate the drift and misty relation system for the backyard so one hundred percent of our irrigation is going to come from the roof and water that actually pulls from the sky onto the patio and we've got a thousand gallons of reservoir there and probably somewhere between 500 and a thousand gallons of additional reservoir in the void space underneath this thousand square foot permeable pavement patio so let me show you some of the components of this project will start over by the leaders and gutters and the pre-filter okay so in this rainwater harvesting system there's two ways that we collect water one is from the roof there are different roof lines different leaders and gutters will be pointing four of the leaders into our pre filter so tool go into this one and to go in on the other side and basically what a pre-filter does is it filters the water so we have a little top with slots in it it sits on top here so that when the rain water goes in there it'll go through there's a little bit of a reservoir about 10 or 15 gallons we have a couple of holes poked in the bottom so that when the rain event is stopped the water will drain out and this acts as a pre-filter for the water going into our system so that we don't have old stagnant water in here and that's going in all the old water actually drains out for the bottom we've also got this micro mesh screen and so this will catch any debris and dirt and again just filter the water a little bit before it goes into our system the other way that the water enters into our system is actually through the pavers the permeable pavement and so these bricks have a large tab on the side that allows the bricks to actually stay separated so that we can put some small gravel in between them and so this makes up the body of our patio and then we have an accent border around the outside it's sitting on top of three-quarter-inch blue stone gravel and then on top of that is about an inch of this quarter inch grit stone this is also the same stone that gets swept in between the pavers so that it allows water to perk through but it filters out some of the impurities here you can see our liner and our different gravels and so there's this 45 mil PDM rubber liner underneath our entire system that collects all the water and allows it to go into our reservoir system see the two different types of stone that we've got here as well this is the three-quarter inch stone is about 12 inches of it water will perk through there and miss stone helps clean the water going into the reservoir and then our smaller stone which is the quarter-inch that's our bedding course that's what the pavers actually lay on and the stone they get swept in between the pavers we're here at the bubbling Rock water feature and basically we just wanted to have a simple sort of sculpture type of rock where there was a stream of water bubbling out from it and water spilling over so it's just a nice subtle water sound something that they can view from inside the kitchen and dining room this has a function and its function is to circulate the water aerate it and filter and clean it so this water falls through Rock The Rock filters out all the impurities aerates it makes it crystal clear so that it can be used for our irrigation system underneath the areas are thousand gallon reservoir and so we've used the product called aqua blocks there's 32 of them and if there's a ten foot by eight foot reservoir about three feet deep that collects a little water and that's where the pump 'let's pump lives down here in our vault and there's a few other things like a an ionizer that kills algae and also this pipe the white pipe is coming out here runs to our booster pump and our booster pump supplies water pressurized water to the sprinkler system so when there's a demand for water this actually turns on supplies high pressure clean water to the sprinkler system so that they can use the water in the so that's it from Brooklyn I'm bill from rainwater harvesting group outdoor living expert please click the subscribe button down at the bottom corner and press like if you like this video