Comment on Water is running again, ram pump installation year 2
poVoq@slrpnk.net 6 months agoIndeed not so much to see on those pictures. I am a bit surprised that your ram-pump is inside the stream. Those I have seem previously were outside, but I guess you tried to maximize the head difference for the main flow?
schmorpel@slrpnk.net 6 months ago
Exactly, I’m working with just 60cm head, which is on the lower end of it working at all. Maybe next year I add another 100 m of tube to reach a spot where the pump can sit outside the stream.
If you have been diving into ram pumps before, I’m curious if you have found any infos about one thing I haven’t had time to research or experiment with: does the distance between the two valves make any difference in terms of efficiency?
poVoq@slrpnk.net 6 months ago
I am by no means an expert on ram pumps, but I would guess no. The impulse valve and the air-chamber are the more likely places for optimisation.
I have really only had a look at them out of personal interest because they are relatively common in the area I worked during the disaster relief after the 2015 earthquake in Nepal. To my knowledge the ones I have seen where based on the design found in this classic manual.
schmorpel@slrpnk.net 6 months ago
Oh there’s a lot of info in this that I didn’t have, thanks for sharing!
I don’t think anybody knows them around here. I showed mine to my neighbour and explained her that it doesn’t use electricity or fuel and she looked quite impressed. The mountain areas here with water running from every hill are just ideal grounds for the rams. I’m still trying to figure out how they could be not just used for gardening, but wisely integrated into fire prevention. I know I can’t just water an area indiscriminately with a ram pump - the pump works till July or August, grow lots of vegetation, which then dries out and is a fire hazard. But maybe something with restoring vegetation around old waterlines first, or storing the water in reservoirs. Ram pumps in combination with reservoirs make great energy harvest and storage as well.