Browse Forums Eco Living Re: Water tank pumps.... 43Jan 21, 2017 2:47 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: Water tank pumps.... 45Jan 24, 2017 10:03 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: Water tank pumps.... 47Jan 24, 2017 11:49 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: Water tank pumps.... 49Feb 01, 2017 2:47 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: Water tank pumps.... 51Feb 03, 2017 9:58 am parfittron What am i looking at cost wise on a clean? You can only phone and ask a tank cleaner in your area. I have heard of people using a pool cleaner to clean a tank and although I have never seen it done, I can't see why it wouldn't work. Our rainwater harvesting systems deliver very clean water to the tank and it is only a talcum powder like sediment that settles on the tank's floor. This is very quickly syphoned out every 5 years or so. Your sediment however will be 'stickier' but it could still be worthwhile doing it diy. I have a syphon made from 25mm pvc pressure fittings and the head is a 25mm x 25mm faucet tee. Two 25mm capped pvc pressure pipes are fitted to the tee and the distance from end to end is 500mm. There are six 10mm holes drilled into the pipes, one at each end and all holes are 100mm apart and 'pointing' directly downwards. A faucet tee has a female threaded branch and this allows a 25mm x 1" BSP valve socket with a 25mm pvc pressure pipe attached to be screwed into the tee's branch after the tee and pipes are lowered through the tank's top meshed inlet. I currently use a 25mm faucet elbow and a 25mm x 1" BSP poly director to convert the pressure pipe to 25mm poly pipe at the top of the pipe. To clean a tank, you raise the bottom tee to just below the water surface to prevent disturbing the sediment layer, fill the poly pipe with water, start the syphon and the tee and pipes are then slowly pushed around the bottom of the tank. The tee and the caps create a 4mm gap for the pipe above the floor and as the tee is pushed away, the holes are angled towards the direction of travel. It is best to syphon clean the tank when there is a reasonable level of water in the tank to generate more head pressure. The syphon action is very powerful and cleaning doesn't take long. I clean friend's and customer's tanks when I have time but it is not a commercial application. I have some syphon priming issues with high tanks with low water levels and I am going to modify mine by fitting a pvc ball valve lower down on the pvc pipe and fit a faucet tee at the top of the pvc pipe to act as a breather when the valve is shut and the hose is filling the pipe. A cap will seal the top of the tee once the pipe is primed and the hose is turned off. The 1" BSP faucet branch will allow a 25mm x 1" poly director to adapt the 25mm pvc pressure pipe to 1" LDPE pipe. parfittron I'd also been suggested removing the post pump filter system all together and just fitting a filter for drinking water at the kitchen only That will mean that the HWS, shower, washing machine etc will be using unfiltered water. It is better to improve the quality of the water delivered to the tank and the way it enters the tank. You have a 2 tank system but I am assuming that the house provides water to one via a wet system and the other services a shed or similar via a dry system. If so, that then rules out converting to a superior 2 tank settling system whereby all water is diverted to one tank which then tops up the second tank with decanted water when required. I also assume that the wet system pipe diverts a large volume of water into the tank through the tank's top inlet which is almost directly over the outlet that supplies the pump. A concentrated flow of water falling into a water tank creates a lot of turbulence and sediment resuspension. Not good! Fitting a calming inlet to an infeed pipe that extends to the bottom of the tank will oxygenate the anaerobic zone and not disturb the sediment layer but to do this, you must also fit mosquito proof leaf diverters to every downpipe. A calming inlet is easily made with either two 90 degree elbows or else with a 90 and a 45 degree elbow. Fitting a DIY sediment trap to the wet system pipe will considerably cut down on the amount of sediment that is flushed into the tank during heavier rain, substantially improving the water quality. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. If you can calculate the reasonable charged head from let's say 100mm below the gutter to the top of where the vertical riser's horizontal discharge pipe will be, that… 11 17783 Building Standards; Getting It Right! Thank you for the generous offer. I need to get the plumber out to give me an explanation. As mentioned I haven't seen any rain water discharge from pipes 1& 3. It… 7 11103 Can a plumber put a tap on a rain water tank which is full? Tank is similar to one in photo. Cheers. 0 1817 |