![]() We added a container at the highest point of the siphon system with a shut off valve. So I am still fighting with gasses collecting in this siphon system. If the gas is mostly CO 2 then you might consider a chemical absorber like used in a scuba re-breather. The water from underground will probably be cool. Gasses are more soluble in water at low temperatures than high. Keep the siphon tube cool and out of the sun. It could be hand, solar or wind powered.īy using a bundle of fine tubes rather than one big pipe, gas bubbles coming out of solution towards the top of the siphon would remain entrained in the liquid flow until they redissolved or bubbled out at the end of the siphon. That gas might be worth collecting if it is something like methane.Ī small positive displacement vacuum pump could operate to very slowly draw low pressure gas from the top of the siphon. Reservoir size would need to be large for a siphon with a big height difference. Low pressure gas would gradually collect there until you turn off the normally open bottom valve and refill the reservoir with water through the normally closed top valve. You could attach a large reservoir to the top of the siphon. It is not really the distance the siphon travels diagonally but the height it lifts water that determines the depression at the top of the siphon. The problem is greatest where the siphon has the greatest possible height and so pressure reduction. This is a problem with ground water that contains dissolved gasses. I can't really change that but I am hoping of a way to dispose of the gas? Any help would be greatly appreciated. Is there some kind of valve? Or some trick that can be used to stop the build up of air from travelling down the hose? I have been reading that there are various reasons why the gas build up is happening. ![]() How can I release this eventual build up of air automatically without losing the siphon. Everything works very well for about 6-7 hours of siphon but eventually small amounts of air bubbles build up into large air pockets and siphon is eventually lost. The water level of the top of the barrel is the level I want to achieve in the upper water hole. I have a 1.5 inch hose that is submersed in the upper water hole and the hose travels slightly up hill for a 100 feet then goes slightly down hill for the other 100 feet into a large barrel of water which just overflows during the siphon process. I have been trying to control the water level in a water hole that I have using a siphon system.
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