Browse Forums Landscape & Garden Design Re: Using tank overflow for drip irrigation 8Aug 07, 2012 7:47 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: Using tank overflow for drip irrigation 10Aug 07, 2012 8:03 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: Using tank overflow for drip irrigation 12Aug 07, 2012 8:29 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: Using tank overflow for drip irrigation 14Aug 07, 2012 9:31 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: Using tank overflow for drip irrigation 16Aug 08, 2012 12:08 am 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: Using tank overflow for drip irrigation 18Aug 16, 2012 11:34 pm The last couple of years have been La Niña years. When the dry El Niño returns it will bring the dry again and that means available tank water maybe compromised in summer. Re: Using tank overflow for drip irrigation 19Jun 21, 2023 9:20 am SaveH2O The drip line would need to have the same discharge capacity as the overflow pipe's maximum flow during heavy rain. At all other times, the discharge would not be evenly distributed. There are devices available that substitute as the tank's overflow when the tank fills, eliminating the need for a tank overflow. Hi SaveH2O, I realise this is an old thread but I have a related question please. We purchased a small water tank (2500L) for our animal barn (roof = 26m2). Water from the roof enters the tank via a 90mm pvc pipe. It currently has no overflow pipe and I need to remedy that asap as the overflowing water is ruining the tank foundation. The overflow outlet is 90mm but I was thinking of reducing that to a 50mm pipe and then running the pipe into a hedge 6m away. We’re actually thinking we’ll use about 6m of 50mm pvc and then connect it to a smaller poly pipe with holes in it. We’re not fussed if the water doesn’t travel far, we just don’t want it to fall around the tank. Do you think a 50mm overflow pipe would be sufficient in size to prevent the tank overflowing from the inlet? I would prefer to use a 50mm pipe (as opposed to a 90mm pipe) if possible as we’d like to partially bury the pipe, which will be easier to do with a small pipe. We can’t fully bury it unfortunately as there isn’t fall to the hedge. TIA Re: Using tank overflow for drip irrigation 20Jun 21, 2023 12:46 pm You would need to convert the 90mm pvc stormwater pipe to pvc DWV pipe because (DN) 90mm pvc stormwater pipe is the smallest size. Doing this is easy as you only need to buy a 100x90mm stormwater adapter and a 100 x 50mm DWV invert taper. 1. Buy and fit a meshed 90mm overflow outlet. 2. Buy and fit a 90mm pvc stormwater 90 degree M + F elbow. Fit the M end into the meshed outlet's socket. 3. Fit a short 90mm pvc stormwater pipe (sleeve) between the elbow's female end and the stormwater adapter's female end. 4. Fit the invert taper's largest end over the stormwater adapter. 5. Fit a 50mm DWV pipe to the invert taper. Disregard the above advice, Lisa06 has found a simple fitting that I was unaware of. See her next post. The DWV pipe is much stronger than a 90mm pvc stormwater pipe.and it won't have any problems with the flow due to the vertical riser providing head pressure should water in the pipe ever back up. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Much a do about nothing. You can see the fall heading to the actual drains. Stormwater ingress will be minimal and it's far better to have the top sitting flush rather… 12 6252 Thanks for that, the PVC pipe is still about 40cm below ground level and it sticks out of the sand with no end cap or anything on it just open pipe, is this the finished… 2 10476 Hi all I am looking to run a water line under my concrete footpath which is directly next to my home, was seeing if this is possible without cutting the entire section… 0 20190 |