Browse Forums Landscape & Garden Design Re: Tank / rainwater system missing filter 2Mar 13, 2013 4:48 pm The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Tank / rainwater system missing filter 3Mar 13, 2013 7:55 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Tank / rainwater system missing filter 5Mar 14, 2013 2:00 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Tank / rainwater system missing filter 7Mar 15, 2013 9:15 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Tank / rainwater system missing filter 9Mar 17, 2013 2:07 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Tank / rainwater system missing filter 12Mar 22, 2013 3:22 pm StartingOut I'm going to have a look inside those Y fittings as soon as I can locate a spanner big enough to open them up! I'm also still chasing where to get that filter around Brisbane and will have a go at straightening the water pump pipe as well, though I suspect that may prove a little difficult being all the way up the other end of the tank. To reach the pipe, just unscrew the top meshed inlet next to it. Re the inlet down the other end that you have taken the photos through; does this normally have a meshed cover fitted to it? The WYE fittings do not look like normal filters but I am assuming that there will be a barrel filter inside. I could be wrong though. I don't know why they would have fitted WYE fittings if there was not a filter inside. Strange! Just having another look at the first photos and one photo looks as though the riser is a bigger pipe than the diverter and the overflow pipe but other photos suggest that they are the same size. If the riser is bigger, it will be a 100mm DWV pipe. These have an outside diameter of 110mm. I would be interested in knowing the size of this pipe. The circumference will be about 350mm from memory. I am really puzzled by the lack of sediment in the bottom of the tank. Leaf diverters do a really good job but I would have expected a lot more sediment after 2 years. I am wondering if the flow of water through the infeed pipes during heavy rain is causing the water and any light resuspended sediment to swirl around the oval tank during heavy rain when the tank level is low to start with and then discharge through the overflow once the tank is full. Most of the water would be coming from the wet system pipe (supplied by two downpipes) and this would have some minor forward carry as it flowed off the bottom of the infeed pipe although it will adhere to the curved downward surface (Coanda effect). If the two downpipes harvest let's say 30 sq m of roof each and there was heavy rain of 2mm per minute for a short duration, then this equates to 120 litres per minute or 2 litres per second infeeding from the wet pipe. The second infeed pipe however is angled and this pipe potentially gives a combined infeed during our reasonable storm of let's say 3 lps. This is substantial for a short tank and would cause significant disturbance. During times of normal rainfall, any fine organic matter would settle around the pump. It would be an interesting study of vorticity. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. 18 90484 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 31280 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 31157 |