Browse Forums Landscape & Garden Design 1 May 26, 2009 3:51 pm Hi this is my first post to this very informative forum. I am in the process of renovating my garden and would like to put in a rainwater tank. The dilemma i have is that our property is on high side of the street with the land sloping towards the road. I would like a minium of 5000 litres which will only fit behind the house which is higher than the house's gutters. Is it a viable option to have a small 200 litre tank linked to a couple of down pipes with a float switch and pump that transfers the water back up to the main tank whenever it rains? Obviously the tanks would have overflow incase of pump failure etc. I could then gravity feed or reconnect back to the pump for distribution into the garden. Or am i better with a smaller (more expensive) slimtank on the house connected directly to the down pipe? I am after the most storage i can get and have plenty of yard to put a large tank in. Thanks in advance. Re: Rainwater Tank on a sloping block 2May 26, 2009 11:21 pm Thanks for joining us I can't help too much but I really hope someone can. Re: Rainwater Tank on a sloping block 3May 26, 2009 11:29 pm BeatrixKiddo Hi this is my first post to this very informative forum. I am in the process of renovating my garden and would like to put in a rainwater tank. The dilemma i have is that our property is on high side of the street with the land sloping towards the road. I would like a minium of 5000 litres which will only fit behind the house which is higher than the house's gutters. Is it a viable option to have a small 200 litre tank linked to a couple of down pipes with a float switch and pump that transfers the water back up to the main tank whenever it rains? Obviously the tanks would have overflow incase of pump failure etc. I could then gravity feed or reconnect back to the pump for distribution into the garden. Or am i better with a smaller (more expensive) slimtank on the house connected directly to the down pipe? I am after the most storage i can get and have plenty of yard to put a large tank in. Thanks in advance. Yes welcome aboard. I think you need to supply a drawing or diagram. Can you position the tank close to the house wall at the back? This would be ideal IMO as you would have gravity feed into the tank AND gravity feed into the house for toilet & laundry. Plus gravity feed for your front garden. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Rainwater Tank on a sloping block 4May 27, 2009 11:11 am Quote: Yes welcome aboard. I think you need to supply a drawing or diagram. Can you position the tank close to the house wall at the back? This would be ideal IMO as you would have gravity feed into the tank AND gravity feed into the house for toilet & laundry. Plus gravity feed for your front garden. Ed Hi i have attached some basic diagrams for you, side elevation and top view. The only place behind the house i can place the tank is shown with the slim line tank. This space is only 1 metre wide with a window on top of the wall at approx 2m which the tank would not block out much. This spot will only collect about 35 sqm off runoff. Probably right for a 3000L slim. Anything above the retaining wall will lift a tank quite high, (even a squat) and i would have to dig a fair bit of clay up to sink the tank below the carport/house gutters. Can't really fit it down the side of the house as there is very little space or access to down pipes. Just thinking about is it worth popping a slim line in and then having a transfer pump to a larger tank up the end of the yard to store all the overflow? Then it can be gravity feed as well. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Rainwater Tank on a sloping block 6May 27, 2009 11:56 am borg would it be possible to burry the tank a little bit into the ground to reduce the height?? Yeah it is possible but i would have to go down a metre at least as the slope kicks a bit up into the yard. I am looking for a solution that doesn't require that much digging and retaining walls etc if possible. Re: Rainwater Tank on a sloping block 7May 27, 2009 12:00 pm BeatrixKiddo Quote: Yes welcome aboard. I think you need to supply a drawing or diagram. Can you position the tank close to the house wall at the back? This would be ideal IMO as you would have gravity feed into the tank AND gravity feed into the house for toilet & laundry. Plus gravity feed for your front garden. Ed Hi i have attached some basic diagrams for you, side elevation and top view. The only place behind the house i can place the tank is shown with the slim line tank. This space is only 1 metre wide with a window on top of the wall at approx 2m which the tank would not block out much. This spot will only collect about 35 sqm off runoff. Probably right for a 3000L slim. Anything above the retaining wall will lift a tank quite high, (even a squat) and i would have to dig a fair bit of clay up to sink the tank below the carport/house gutters. Can't really fit it down the side of the house as there is very little space or access to down pipes. Just thinking about is it worth popping a slim line in and then having a transfer pump to a larger tank up the end of the yard to store all the overflow? Then it can be gravity feed as well. I think your plan is a good one.... You can get a slimline tank 2m high... like this one Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Modular (so you can add more), 600mm deep - around $2000 with pump. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Rainwater Tank on a sloping block 8May 28, 2009 3:47 pm Cheers, thanks for the input. Might duck down to the irrigation store and have a chat with them and see if this a good way to go, DIY, Home Maintenance & Repair But if it is a ground level open pit, then it is not a charged system. No surprises there. The pipes have obviously been altered and there would be a reason for this.… 3 31358 Grate, thank you! RexChan if thats the reason i could sleep well without thinking about additional cost. But 1st i'll need to read about NRV cleaning/replaing stuff. I… 7 31207 Give Jonathan a call. Tell him you know me. He is in my opinion the best surveyor I have ever worked with. His number is 0425 285 622 All the best Simeon 3 12522 |